Where this LCD applies
Each contract number is a jurisdiction on the remittance; the policy binds claims processed under these contracts and no others.
| Contract | Contractor | Type | States |
|---|---|---|---|
| 06101 | Wellpoint Federal | MAC - Part A | IL |
| 06201 | Wellpoint Federal | MAC - Part A | MN |
| 06301 | Wellpoint Federal | MAC - Part A | WI |
| 06102 | Wellpoint Federal | MAC - Part B | IL |
| 06202 | Wellpoint Federal | MAC - Part B | MN |
| 06302 | Wellpoint Federal | MAC - Part B | WI |
| 13101 | Wellpoint Federal | A and B and HHH MAC | CT |
| 13201 | Wellpoint Federal | A and B and HHH MAC | NY |
| 13102 | Wellpoint Federal | A and B and HHH MAC | CT |
| 13202 | Wellpoint Federal | A and B and HHH MAC | DN |
| 13282 | Wellpoint Federal | A and B and HHH MAC | UN |
| 13292 | Wellpoint Federal | A and B and HHH MAC | QN |
| 14411 | Wellpoint Federal | A and B and HHH MAC | RI |
| 14211 | Wellpoint Federal | A and B and HHH MAC | MA |
| 14311 | Wellpoint Federal | A and B and HHH MAC | NH |
| 14511 | Wellpoint Federal | A and B and HHH MAC | VT |
| 14111 | Wellpoint Federal | A and B and HHH MAC | ME |
| 14112 | Wellpoint Federal | A and B and HHH MAC | ME |
| 14212 | Wellpoint Federal | A and B and HHH MAC | MA |
| 14312 | Wellpoint Federal | A and B and HHH MAC | NH |
| 14512 | Wellpoint Federal | A and B and HHH MAC | VT |
| 14412 | Wellpoint Federal | A and B and HHH MAC | RI |
Billing and coding: diagnoses and procedure codes
Since 2019 the codes live in the companion article rather than the LCD. Billing and Coding A56566 (Billing and Coding: Outpatient Physical and Occupational Therapy Services) carries the diagnosis and procedure lists the contractor loads as the claims edit. CPT codes are shown as bare numbers because the descriptors are licensed by the AMA; HCPCS Level II descriptors are public and shown.
A56566: Billing and Coding: Outpatient Physical and Occupational Therapy Services (Billing and Coding, effective 2026-04-01)
- Covered ICD-10-CM codes
- 3
- 1 group
- Non-covered ICD-10-CM codes
- 1300
- Procedure codes listed
- 90
- Full article
- cms.gov record
| ICD-10-CM | Description (FY2027) |
|---|---|
| H81.11 | — |
| H81.12 | — |
| H81.13 | — |
Procedure codes: 0552T, 29065, 29075, 29085, 29086, 29105, 29125, 29126, 29130, 29131, 29200, 29240, 29260, 29280, 29345, 29355, 29365, 29405, 29425, 29445, 29505, 29515, 29520, 29530, 29540, 29550, 29580, 29799, 90901, 90912, 90913, 95851, 95852, 95992, 96125, 97010, 97012, 97016, 97018, 97022 and 50 more in the article.
Coverage indications, limitations and medical necessity
Medical Necessity
To be considered reasonable and necessary, the services must meet Medicare guidelines. The guidelines for coverage of outpatient therapies have basic requirements in common.
In the case of rehabilitative therapy, the patient’s condition has the potential to improve or is improving in response to therapy, maximum improvement is yet to be attained; and there is an expectation that the anticipated improvement is attainable in a reasonable and generally predictable period of time. Refer to CMS Publication 100-02, Medicare Benefit Policy Manual , chapter 15, section 220.2(C).
For example, therapy may not be covered for a fully functional patient who developed temporary weakness from a brief period of bed rest following abdominal surgery. It is reasonably expected that as discomfort reduces and the patient gradually resumes daily activities, function will return without skilled therapy intervention.
A therapy plan of care is developed either by the physician/NPP, or by the physical therapist who will provide the physical therapy services, or the occupational therapist who will provide the occupational therapy services, (only a physician may develop the plan of care in a CORF). The plan must be certified by a physician/NPP.
• If the goal of the plan of care is to improve functioning, the documentation must establish that the patient needs the unique skills of a therapist to improve functioning.
• If the goal of the plan of care is to maintain, prevent or slow further deterioration of functional status function or prevent deterioration, the documentation must establish that the patient needs the unique skills of a therapist to maintain, prevent or slow further deterioration of functional status.
All services provided are to be specific and effective treatments for the patient’s condition according to accepted standards of medical practice; and the amount, frequency, and duration of the services must be reasonable.
Services related to recreational activities such as golf, tennis, running, etc., are not covered as therapy services.
The services that are provided must meet the description of skilled therapy below.
Skilled Therapy
Services that do not require the professional skills of a therapist to perform or supervise are not medically necessary, even if they are performed or supervised by a therapist, physician or NPP. The skills of a therapist may also be furnished by an appropriately trained and experienced physician or NPP, or by an assistant (PTA, OTA) appropriately supervised by a therapist. Therefore, if a patient’s therapy can proceed safely and effectively through a home exercise program, self management program, restorative nursing program or caregiver assisted program, payment cannot be made for therapy services.
Consider the following when determining if a service is skilled.
The services shall be of such a level of complexity and sophistication or the condition of the patient shall be such that the services required can only be safely and effectively performed by a qualified clinician, or therapists supervising assistants.
Maintenance therapy occurs when the skills of a therapist (as defined by the scope of practice for therapists in each state) are necessary to safely and effectively furnish a recognized therapy service, whose goal is to maintain functional status or to prevent or slow further deterioration in functional status.
• If the specialized skill, knowledge and judgment of a qualified therapist are required to establish or design a maintenance program to maintain the patient’s current condition or to prevent or slow further deterioration, the establishment or design of a maintenance program by a qualified therapist is covered.
• If skilled therapy services by a qualified therapist are needed to instruct the patient or appropriate caregiver regarding the maintenance program, such instruction is covered.
• If skilled therapy services are needed for periodic reevaluations or reassessments of the maintenance program, such periodic reevaluations or reassessments are covered.
• Such skilled care is necessary for the performance of a safe and effective maintenance program only when (a) the therapy procedures required to maintain the patient’s current function or to prevent or slow further deterioration are of such complexity and sophistication that the skills of a qualified therapist are required to furnish the therapy procedure or (b) the particular patient’s special medical complications require the skills of a qualified therapist to furnish a therapy service required to maintain the patient’s current function or to prevent or slow further deterioration, even if the skills of a therapist are not ordinarily needed to perform such therapy procedures.
• If at any point in the treatment it is determined that the treatment becomes repetitive and does not require the unique skills of a therapist, the services are non-covered.
• There may be circumstances where the patient, with or without the assistance of an aide or other caregiver, does activities planned by a clinician. Although these activities may be supportive to the patient’s treatment, if they can be done by the patient, aides or other caregivers without the active participation of qualified professional/auxiliary personnel, they are considered unskilled.
• An individualized plan of exercise and activity for patients and their caregiver(s) may be developed by clinicians to maintain and enhance a patient’s progress during the course of skilled therapy, as well as after discharge from therapy services. Such programs are an integral part of therapy from the start of care and should be updated and modified as the patient progresses.
• If a patient’s limited ability to comprehend instructions, follow directions, or remember skills that are necessary to achieve an increase in function, is so severe as to make functional improvement very unlikely, rehabilitative therapy is not required, and therefore, is not covered. However, limited services in these circumstances may be covered with supportive documentation, if the skills of a therapist are required to establish and teach a caregiver a safety or maintenance program.
• This does not apply to the limited situations where rehabilitative therapy is reasonable and achieving meaningful goals is appropriate, even when a patient does not have the ability to comprehend instructions, follow directions or remember skills. Examples include sitting and standing balance activities that help a patient recover the ability to sit upright in a seat or wheel-chair, or safely transfer from the wheelchair to a toilet.
• This also does not apply to those patients who have the potential to recover abilities to remember or follow directions, and treatment may be aimed at rehabilitating these abilities, such as following a traumatic brain injury.
• The use of therapy equipment such as therapeutic pools or gym machines alone does not necessarily make the treatment skilled.
• Medicare does not cover packaged or predetermined therapy services or programs, such as Back Schools or pre-operative joint classes with preset educational activities and exercises for all participants involved. Services must be individualized, medically necessary and require the unique skills of a therapist. (Packaged or predetermined therapy services do not apply to post-surgical protocols that provide ranges and guidance.)
Personnel Authorized to Provide Outpatient Therapy Services
Medicare billable therapy services may be provided by any of the following within their scope of practice and consistent with state and local law:
• physician;
• non-physician practitioner (NPP) (physician assistants, nurse practitioners, clinical nurse specialists);
• qualified physical and occupational therapists, speech language pathologists*, and assistants working under the supervision of a qualified therapist;
• qualified personnel, with or without a license to practice therapy, who have been educated and trained as therapists and qualify to furnish therapy services only under direct supervision incident to a physician or NPP.
*Please refer to the LCD for Speech Language Pathology (L33580) for further coverage information on speech language pathology services.
Personnel NOT Authorized to Provide Outpatient Therapy Services
Students*, aides, athletic trainers, exercise physiologists, massage therapists, recreation therapists, kinesiotherapists, low vision specialists, lymphedema specialists, pilates instructors, rehabilitation technicians and life skills trainers are not considered qualified therapy professionals and may not bill their services under the Medicare therapy benefit, even if performed under the supervision of a qualified therapist.
*See Therapy Students section in the related Billing and Coding article for further clarification regarding student participation in treatment.
CMS established the qualifications to assure that all personnel who provide therapy services are suitably trained in the discipline they practice. Personnel who do not meet the applicable professional standards to be considered qualified professional/personnel cannot furnish or be paid for physical or occupational therapy services.
Private Practice Therapy Services
All therapy medical necessity, certification, documentation and coding guidelines of this LCD apply to all outpatient settings, including therapy services provided by private practitioners. In addition, in the private practice setting, all services not performed by the therapist must be performed by an assistant who is an employee of the practice and must be under direct supervision of the therapist.
Therapy Provided by Physicians and Physician Employees
Physical and occupational therapy services may be provided by physicians, non-physician practitioners (NPPs), or incident-to the services of physicians/NPPs when provided by physical or occupational therapists, in the office or home. All therapy medical necessity, certification, documentation, and coding guidelines of this LCD apply with one exception. When therapy services are performed incident-to a physician’s/NPP’s service, the therapist does not need a license to practice therapy, unless it is required by state law. All other physical or occupational therapist qualifications (education and training) must be met. Therapy services must be directly supervised.
Indications and Limitations of Coverage and/or Medical Necessity for specific modalities and procedures:
Therapy services should be provided in a manner that meets the patient’s needs. The treatment plan should strive to provide treatment in the most efficient and effective manner, balancing the best achievable outcome with the appropriate resources. This LCD provides recommendations intended to assist qualified professionals/auxiliary personnel in documenting to support both the medical necessity and the skilled nature of the therapy services provided. In addition, any numerical guidelines related to individual codes in this section of the LCD, are based on contractor medical review experience. These are provided to remind qualified professionals/auxiliary personnel of the importance of justifying therapy services in the documentation as the patient progresses through an episode of care. Documentation must be sufficient to demonstrate the specifics of the therapy provided so that it may be determined that the treatment was medically necessary. Please refer to CMS publication 100-02, Medicare Benefit Policy Manual , Chapter 15, section 220.3 for the Medicare minimal documentation requirements for therapy services.
Physical therapy evaluation
Occupational therapy evaluation
The initial evaluation should document the necessity of a course of therapy through objective findings and subjective patient/caregiver self-reporting. Initial evaluations must be completed by the therapist or physician/NPP that will be providing the therapy services. Initial evaluations are completed to determine the medical necessity of initiating rehabilitative therapy or skilled instruction in maintenance activities that the patient and/or caregiver can perform at home.
Initial evaluation may be warranted when there is a change in functional ability. The evaluation should clearly describe the presenting complaint or problem for which the patient is seeking services of the physical or occupational therapist.
The evaluation process assesses, for example, the severity and impact of the current problem, the possibility of multi-site or multi-system involvement, the presence of pre-existing systemic conditions (e.g., diseases), and the stability of the condition. If the patient presents with multi-system involvement and/or multiple site involvement, all pertinent areas/conditions should be assessed at the initial evaluation (i.e., cervical pain and knee pain; low back pain and rotator cuff irritation; cervical pain and low back pain). Only one initial evaluation code should be used, reflecting the level of complexity of the evaluation, and all presenting complaints and problems evaluated. If over the course of an episode of treatment, a new, unrelated diagnosis occurs, another initial evaluation may be covered.
Initial evaluations may be covered when the documentation justifies the need for a skilled therapy evaluation, even if it is determined that the patient does not require a skilled level of treatment.
Screening may be more appropriate than evaluation in some circumstances. For example, a patient develops an acute lateral epicondylitis from painting. The patient seeks physician attention who subsequently recommends that the patient see an occupational therapist. By the time the patient sees the OT, she presents without any pain and has resumed all normal functional activities. Completing a screening interview of this patient should lead the therapist to determine that an OT evaluation and treatment would not be medically necessary.
• A screening is the gathering of information to determine the need for further evaluation by the clinician. The screening process may include a review of the patient’s medical record, a patient interview and observation of the patient.
• Routine screening is not a billable service. Although some regulations and state practice acts require screening evaluations at specific intervals (such as at admission to a nursing home, or quarterly during the patient’s stay), for Medicare payment, evaluations must meet Medicare coverage guidelines.
Initial evaluations from other therapy disciplines performed on the same beneficiary may also be covered, provided the evaluation and plan of care are not duplicative.
Consider the following points when billing for an evaluation.
• Evaluations for deconditioning after hospitalization where it is anticipated that prior functional abilities would spontaneously return through patient, caregiver and/or nursing activities are not considered medically necessary and are not covered.
• Pre-operative evaluations performed routinely to ascertain the patient’s post-surgical needs and/or to explain the services that will be provided post-operatively are non-covered. The patient’s post-op experience and functional limitations are unknown prior to the surgery and will at that time require a new evaluation of the situation when medically necessary.
• Driving assessments provided under an occupational therapy plan of care are covered only when there is a reasonable expectation that the patient’s ability to drive will be restored or improved. The need for the assessment must be related to the presence of, or recovery from, a specific injury or illness. Generalized aging, weakness or debility do not qualify as Medicare covered conditions for assessment or therapy services. Assessment for the sole purpose of disqualifying a patient from driving is not a covered benefit.
Physical therapy reevaluation
Occupational therapy reevaluation
Reevaluation provides additional objective information not included in other documentation, such as treatment or progress notes.
Reevaluations are distinct from therapy assessments. Assessments are considered a routine aspect of intervention and are not billed separately from the intervention. For example, a patient is being seen in physical or occupational therapy for shoulder pain and limited shoulder functional range of motion due to capsular tightness. Prior to performing shoulder joint mobilizations, the therapist assesses the patient’s ROM and pain level/pattern to determine the effect of prior treatment and, if further mobilization is warranted, to determine the appropriate mobilizations. After the mobilizations are completed, the ROM is assessed again to determine the effects of the treatment just performed. The time required to assess the patient before and after the intervention is added to the minutes of the treatment intervention.
Consider the following points when billing for a reevaluation.
• When reevaluations are done for a significant change in condition, documentation must show a significant improvement, decline or change in the patient’s diagnosis, condition or functional status that was not anticipated in the current plan of care. When a patient exhibits a demonstrable change in functional ability, a reevaluation may be necessary to revise long term goals and interventions. The plan of care may need to be revised and recertified if significant changes are made, such as a change in the long-term goals.
• If a patient is hospitalized during the therapy interval, a reevaluation may be medically necessary if there has been a significant change in the patient’s condition which has caused a change in function, long term goals, and/or treatment plan.
• Reevaluations may be appropriate at a planned discharge when documentation supports the medical necessity for the reevaluation service.
MODALITIES
Modalities chosen to treat the patient’s symptoms/conditions should be selected based on the most effective and efficient means of achieving the patient’s functional goals. Seldom should a patient require more than one (1) or two (2) modalities to the same body part during the therapy session. Use of more than two (2) modalities on each visit date is unusual and should be carefully justified in the documentation.
The use of modalities as stand-alone treatments is rarely therapeutic, and usually not required or indicated as the sole treatment approach to a patient’s condition. The use of exercise and activities has proven to be an essential part of a therapeutic program. Therefore, a treatment plan should not consist solely of modalities, but should also include therapeutic procedures. (There are exceptions, including wound care or when patient care is focused on modalities because the acute patient is unable to endure therapeutic procedures.) Use of only passive modalities that exceeds 4 visits should be very well supported in the documentation.
Multiple heating modalities should not be used on the same day. Exceptions are rare and usually involve musculoskeletal pathology/injuries in which both superficial and deep structures are impaired. Documentation must support the use of multiple modalities as contributing to the patient’s progress and restoration of function. For example, it would not be medically necessary to perform both thermal ultrasound and thermal diathermy on the same area, in the same visit, as both are considered deep heat modalities.
When the symptoms that required the use of certain modalities begin to subside and function improves, the medical record should reflect the discontinuation of those modalities, so as to determine the patient’s ability to self-manage any residual symptoms. As the patient improves, the medical record should reflect a progression of the other procedures of the treatment program (therapeutic exercise, therapeutic activities, etc.). In all cases, the patient and/or caregiver should be taught aspects of self-management of his/her condition from the start of therapy.
Hot or cold packs (to one or more areas)
Hot or cold packs (including ice massage) applied in the absence of associated procedures or modalities, or used alone to reduce discomfort are considered not to require the unique skills of a therapist.
Traction, Mechanical (to one or more areas)
Traction is generally limited to the cervical or lumbar spine with the expectation of relieving pain in or originating from those areas.
Specific indications for the use of mechanical traction include cervical and/or lumbar radiculopathy and back disorders such as disc herniation, lumbago, and sciatica.
This modality is typically used in conjunction with therapeutic procedures, not as an isolated treatment.
Equipment and tables utilizing roller systems are not considered true mechanical traction. Services using this type of equipment are non-covered.
Vasopneumatic Devices (to one or more areas)
The use of vasopneumatic devices may be considered reasonable and necessary for the application of pressure to an extremity for the purpose of reducing edema or lymphedema.
Specific indications for the use of vasopneumatic devices include reduction of edema after acute injury or lymphedema of an extremity. Education on the use of a lymphedema pump for home use is covered when medically necessary and can typically be completed in three (3) or fewer visits once the patient has demonstrated measurable benefit in the clinic environment.
Note: Further treatment of lymphedema by a vasopneumatic device rendered by a clinician after the educational visits is generally not reasonable and necessary unless the patient presents with a condition or status requiring the skills and knowledge of a physical or occupational therapist.
The use of vasopneumatic devices is generally not covered as a temporary treatment while awaiting receipt of ordered compression stockings.
Paraffin Bath (to one or more areas)
Paraffin bath treatments typically do not require the unique skills of a
therapist. However, the skills, knowledge and judgment of a therapist might be required in the provision of such treatment or baths in a complicated case. Only in cases with complicated conditions will paraffin be covered, and then coverage is generally limited to educating the patient/caregiver in home use. Paraffin is contraindicated for open wounds or areas with documented desensitization.
Whirlpool (to one or more areas)
Whirlpool bath treatments typically do not require the unique skills of a therapist. However, therapist supervision of the whirlpool modality may be medically necessary for the following indications:
• a condition complicated by a circulatory deficiency or areas of desensitization;
• an open wound which is draining, has a foul odor, or necrotic tissue;
The policy text continues in the CMS record.
Summary of evidence (opening)
N/A
the full summary and analysis of evidence are in the CMS record.
Dates, lineage and related policies
- Original determination effective
- 2015-10-01
- Current revision effective
- 2026-04-01
- Last reviewed by the contractor
- 2016-12-21
- MCD version
- 52
- Derived from
- L26884
The contractor lists 12 National Coverage Determinations as related: NCD 150.5 Diathermy Treatment, NCD 160.7 Electrical Nerve Stimulators, NCD 150.8 Fluidized Therapy Dry Heat for Certain Musculoskeletal Disorders, NCD 160.2 Treatment of Motor Function Disorders with Electric Nerve Stimulation, NCD 160.7.1 Assessing Patient's Suitability for Electrical Nerve Stimulation Therapy, NCD 160.12 Neuromuscular Electrical Stimulation (NMES), NCD 160.13 Supplies Used in the Delivery of Transcutaneous Electrical Nerve Stimulation (TENS) and Neuromuscular Electrical Stimulation (NMES), NCD 160.15 Electrotherapy for Treatment of Facial Nerve Paralysis (Bell's Palsy), NCD 160.16 Vertebral Axial Decompression (VAX-D), NCD 160.27 Transcutaneous Electrical Nerve Stimulation (TENS) for Chronic Low Back Pain (CLBP), NCD 170.1 Institutional and Home Care Patient Education Programs, NCD 270.6 Infrared Therapy Devices. Where an NCD speaks, it controls; the LCD can only address what the NCD leaves open.
Using this policy on a claim
Match the documented indication to the covered indications above before the service is scheduled, carry a diagnosis from the article's covered list on the claim line, and keep the elements the documentation section asks for in the record, because the contractor can request it later through medical review. A denial under this policy arrives as CARC 50 with remark N115; the LCD lookup guide walks through the appeal path and the Advance Beneficiary Notice rules, and the Wellpoint Federal hub lists every other active policy from the same contractor.
The same policy title at other contractors
Contractors often adopt each other's policies and then revise them separately, so the criteria and the diagnosis lists drift apart. The topic comparison lines up every version.
Frequently asked questions
What does LCD L33631 cover?
To be considered reasonable and necessary, the services must meet Medicare guidelines. The guidelines for coverage of outpatient therapies have basic requirements in common. The full indications and limitations are reproduced on this page from the CMS Medicare Coverage Database export of September 24, 2026.
Which states does LCD L33631 apply to?
Wellpoint Federal applies it to Medicare claims in CT, DN, IL, MA, ME, MN, NH, NY, QN, RI, UN, VT, WI. A Local Coverage Determination binds only the contractor that wrote it; the same service in another jurisdiction is judged under that contractor's own policy or, where none exists, claim by claim.
Which diagnosis codes support medical necessity under LCD L33631?
The companion billing and coding article A56566 lists 3 ICD-10-CM codes in 1 group that support medical necessity and 1,300 that do not; the first 3 appear on this page and the complete list is in the article on cms.gov.
How do I appeal a denial under LCD L33631?
The remittance carries claim adjustment reason code 50 with remark code N115, naming the LCD. Compare the documented indication with the policy's covered indications and the article's diagnosis list, then file a redetermination within 120 days with the record attached; if the service genuinely falls outside the policy, the patient can be billed only when a valid Advance Beneficiary Notice was obtained before the service.
Sources
Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-02. Verify against the primary file before billing or contracting decisions.
- Medicare Coverage Database, current LCD exportVersion MCD release 2026-09-24 · effective 2026-09-20 · file lcd.csvSHA-256 2fcc4251b6ddd1eb…
- Medicare Coverage Database, current Billing and Coding Articles exportVersion MCD release 2026-09-24 · effective 2026-09-20 · file article.csvSHA-256 f31932f1df3b4035…
- ICD-10-CM FY2027 code descriptionsVersion FY2027 · effective 2026-10-01 · file icd10cm_codes_2027.txtSHA-256 3c0583a38ee0e848…
Disclaimer
The policy text and code lists are reproduced from the CMS Medicare Coverage Database export as an operational reference. Verify against the current LCD and article on cms.gov before billing; coverage depends on the full record and the contractor. Not legal, clinical or billing advice.