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 |
|---|---|---|---|
| 15102 | CGS Administrators, LLC | MAC - Part B | KY |
| 15202 | CGS Administrators, LLC | MAC - Part B | OH |
| 15101 | CGS Administrators, LLC | MAC - Part A | KY |
| 15201 | CGS Administrators, LLC | MAC - Part A | OH |
Billing and coding: diagnoses and procedure codes
Since 2019 the codes live in the companion article rather than the LCD. Billing and Coding A57054 (Billing and Coding: Psychological Services Coverage under the Incident to Provision for Physicians and Non-physicians) 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.
A57054: Billing and Coding: Psychological Services Coverage under the Incident to Provision for Physicians and Non-physicians (Billing and Coding, effective 2026-03-26)
- Covered ICD-10-CM codes
- 1
- 1 group
- Non-covered ICD-10-CM codes
- 0
- Procedure codes listed
- 16
- Full article
- cms.gov record
| ICD-10-CM | Description (FY2027) |
|---|---|
| XX000 | — |
Procedure codes: 90785, 90832, 90833, 90834, 90836, 90837, 90838, 90839, 90840, 90846, 90847, 90849, 90853, 90863, 90880, 90899.
Coverage indications, limitations and medical necessity
Abstract:
"Incident to" a physician's professional services means that the services or supplies are furnished as an integral, although incidental, part of the physician's personal professional services in the course of diagnosis or treatment of an injury or illness. (CMS Pub 100-02, Chapter 15, Section 60.1) The "incident to" provision may also apply to coverage for psychological services furnished "incident to" the professional services of certain non-physician practitioners including clinical psychologists, clinical social workers, nurse practitioners, and clinical nurse specialists (CMS Pub 100-02, Chapter 15, Section 60.2). Section 1862(a)(1)(A) of the Social Security Act governs payment for the provision of medical care to Medicare beneficiaries.
The training requirements and state licensure or authorization of individuals who perform psychological services are intended to ensure an adequate level of expertise in the cognitive skills required for the performance of diagnostic and therapeutic psychological services. Therefore, only the types of individuals listed later in this policy are considered qualified to perform medically necessary psychological services addressed in this policy. Delegation of diagnostic and therapeutic psychological services to personnel not performing within the scope of practice as authorized by state law, under the "incident to" provision, would bypass the safeguards afforded by professional credentialing and state licensure requirements. Such delegated services under the "incident to" provision would be inappropriate, unreasonable, and medically unnecessary, and therefore not covered by Medicare.
Coverage of services and supplies "incident to" the professional services of a physician in private practice is limited to situations in which there is direct physician supervision of auxiliary personnel. (CMS Pub 100-02, Chapter 15, Section 60.2). To be considered an employee (auxiliary personnel) for purposes of this section, the nonphysician performing an "incident to" service is defined as any individual who is acting under the supervision of a physician, regardless of whether the individual is an employee, leased employee, or independent contractor of the physician or legal entity that employs or contracts with the physician. (CMS Pub 100-02, Chapter 15, Section 60.2).
Indications and Limitations:
For psychology services rendered under the "incident to" provision, the billing provider must first evaluate the patient personally and then initiate the course of treatment. The appropriately trained therapists may then render psychological services to the patient under the billing provider's direct supervision.
Only the types of practitioners listed below, when they are performing within their scope of clinical practice as authorized under state law, are qualified to perform the indicated diagnostic and/or therapeutic psychological services under the "incident to" provision.
• Doctorate or Masters level Clinical Psychologist: 90785, 90804, 90806, 90808, 90810, 90812, 90814, 90816, 90818, 90821, 90823, 90826, 90828, 90832-90834, 90836-90840, 90846, 90847, 90849, 90853, 90857, 90880, 90899. (Codes 90804, 90806, 90808, 90810, 90812, 90814, 90816, 90818, 90821, 90823, 90826, and 90828 were deleted effective 12/31/12.)
• Doctorate or Masters level Clinical Social Worker: 90785, 90804, 90806, 90808, 90810, 90812, 90814, 90816, 90818, 90821, 90823, 90826, 90828, 90832-90834, 90836-90840, 90846, 90847, 90849, 90853, 90857, 90899. (Codes 90804, 90806, 90808, 90810, 90812, 90814, 90816, 90818, 90821, 90823, 90826, and 90828 were deleted effective 12/31/12.)
• Clinical Nurse Specialist (CNS): 90785, 90804, 90805, 90806, 90807, 90808, 90809, 90810, 90811, 90812, 90813, 90814, 90815, 90816, 90817, 90818, 90819, 90821, 90822, 90823, 90824, 90826, 90827, 90828, 90829, 90832-90834, 90836-90840, 90846, 90847, 90849, 90853, 90857, 90899 (90862, if authorized by the state to prescribe medication; this code was deleted effective 12/31/12. 90863, if authorized by the state to prescribe medication.) Note: Codes 90804-90829 and 90857 were deleted effective 12/31/12
• Nurse Practitioner* (NP): 90785, 90804, 90805, 90806, 90807, 90808, 90809, 90810, 90811, 90812, 90813, 90814, 90815, 90816, 90817, 90818, 90819, 90821, 90822, 90823, 90824, 90826, 90827, 90828, 90829, 90846, 90847, 90849, 90853, 90857, 90899 (90862, if authorized by the state to prescribe medication; this code was deleted effective 12/31/12. 90863, if authorized by the state to prescribe medication.) Note: Codes 90804-90829 and 90857 were deleted effective 12/31/12
*limited to advanced registered nurse practitioners with a masters degree in the mental health equivalent to a masters prepared certified clinical nurse specialist.
• The psychological services referenced in the above HCPCS codes may only be delegated to employees who qualify for one of the categories of individuals listed above. For example, a psychiatrist may hire a clinical social worker to perform services designated by the HCPCS codes listed in #2 above. Individuals who are performing services "incident to" a qualified Medicare practitioner are not required to be separately enrolled as an independent practitioner in Medicare.
It is not permissible for the billing provider to hire and supervise a professional whose scope of practice is outside the provider's own scope of practice as authorized under State law, or whose professional qualifications exceed those of the "supervising" provider. For example, a certified nurse-midwife (CNM) may not hire a psychologist and bill for that psychologist's services under the "incident to" provision, because a psychologist's services are not integral to a CNM's personal professional services and are not regularly included in the CNM's bill. Even though sections 1861(s)(2)(l) and 1861(gg) (l) of the Social Security Act authorize coverage for services furnished "incident to" a CNM's services, psychological services are not commonly furnished in CNM's offices nor within their scope of practice. Similarly, even though section 1861(s)(2)(K)(iv) authorizes coverage for services furnished "incident to" a physician assistant's services, a physician assistant would not be qualified to supervise psychological services performed by the types of individuals listed above.
Individuals who are not licensed or otherwise authorized by state law to provide psychological services may not provide psychological services under the "incident to" provision. This level of professional credentialing is necessary to furnish appropriate medically necessary services under the "incident to" provision.
Psychological services furnished to Medicare beneficiaries under the "incident to" provision by individuals other than those listed above are not covered. (Note: the standards for professional credentialing are higher for these services billed to Medicare Part B than for similar services performed by other mental health professionals not under the "incident to" provision and billed to Medicare Part A. Under the "incident to" provision, services are performed in the place of the billing provider. In order for services performed and billed under the "incident to" provision to be commensurate with the services performed by the billing provider, and therefore medically necessary, this higher standard of professional credentialing is necessary.)
The practice of "marriage and family therapy" includes the identification and treatment of cognitive, affective and behavioral conditions related to marital and family dysfunctions that involve the professional application of psychotherapeutic and systems theories and techniques in the delivery of services to individuals, couples, and families. Local laws regulating their professional practice do not authorize any licensed marriage and family therapist or marriage and family therapy associate to administer or interpret psychological tests. Please refer to applicable state laws.
Coverage of services and supplies "incident to" the professional services of a physician in private practice is limited to situations in which there is direct physician supervision of auxiliary personnel. (CMS Pub 100-02, Chapter 15, Section 60.2). This also applies to the services of certain non - physician practitioners who are being licensed by the states under various programs to assist or act in the place of the physician, including nurses, clinical psychologists, clinical social workers and other therapists. Direct supervision in the office setting does not mean that the physician must be present in the same room with his or her aide. However, the physician must be present in the office suite and immediately available to provide assistance and direction throughout the time the aide is performing services (CMS Pub 100-02, Chapter 15, Section 60.1 - Section 60.3). Services and supplies incident to a physician’s service in a physician directed clinic or group association are generally the same as those described for the office setting (CMS Pub 100-02, Chapter 15, Section 60.3).
For hospital patients and for SNF patients who are in a Medicare covered stay, there is no Medicare Part B coverage of the services of physician-employed auxiliary personnel as services incident to physicians' services under §1891(s)(2)(A) of the Act. Such services can be covered only under the hospital outpatient or inpatient benefit and payment for such services can be made to only the hospital by a Medicare intermediary (CMS Pub 100-02, Chapter 15, Section 60).
For "incident to" services to be covered when a physician's office is in an institution, the auxiliary medical personnel must be members of the office staff rather than of the institution's staff, and the cost of supplies must represent an expense to the physician's office practice. In addition, services performed by the employees of the physician outside the "office" area must be directly supervised by the physician; his presence in the facility as a whole would not suffice to meet this requirement. (In any setting, of course, supervision of auxiliary personnel in and of itself is not considered a "physician's professional service" to which the services of the auxiliary personnel could be an incidental part, i.e., in addition to supervision, the physician must perform or have performed a personal professional service to the patient to which the services of the auxiliary personnel could be considered an incidental part). Denials for failure to meet any of these requirements would be based on §1861(s)(2)(A) of the Act. (CMS Pub 100-03; Medicare National Coverage Determinations Manual , Chapter 1, Part 1, 70.3)
If auxiliary personnel perform services outside the office setting, e.g., in a patient's home or in an institution (other than a hospital or SNF), their services are covered incident to a physician's service only if there is direct supervision. The availability of the physician by telephone or the presence of the physician somewhere in the institution does not constitute direct personal supervision (CMS Pub 100-02, Chapter 15, Section 60.1).
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
- 2026-03-26
- Last reviewed by the contractor
- 2026-03-16
- MCD version
- 16
- Derived from
- L31892
The contractor lists one National Coverage Determination as related: NCD 70.3 Physician's Office within an Institution Coverage of Services and Supplies Incident to a Physician's Services. 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 CGS Administrators, LLC hub lists every other active policy from the same contractor.
Frequently asked questions
What does LCD L34539 cover?
"Incident to" a physician's professional services means that the services or supplies are furnished as an integral, although incidental, part of the physician's personal professional services in the course of diagnosis or treatment of an injury or illness. (CMS Pub 100-02, Chapter 15, Section 60.1) The "incident to" provision may also apply to coverage for psychological services furnished "incident to" the… 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 L34539 apply to?
CGS Administrators, LLC applies it to Medicare claims in KY, OH. 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 L34539?
The companion billing and coding article A57054 lists 1 ICD-10-CM codes in 1 group that support medical necessity; the first 1 appear on this page and the complete list is in the article on cms.gov.
How do I appeal a denial under LCD L34539?
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.