Key facts for NCD 70.3
- Benefit category
- Incident to a physician's professional Service
- Effective date
- This is a longstanding national coverage determination. The effective date of this version has not been posted.
- Transmittal
- Transmittal 36
- Versions published
- 1
- Manual chapter
- 70
- NCD Manual (Pub. 100-03)
TL;DR
NCD 70.3 sets Medicare's national policy for physician's office within an institution coverage of services and supplies incident to a physician's services under the benefit category "Incident to a physician's professional Service", effective This is a longstanding national coverage determination. The effective date of this version has not been posted.. In order to accurately apply the criteria in the Medicare Benefit Policy Manual , Chapters 6, §20.4.1, or Chapter 15, “Covered Medical and Other Health Services,” §60.1, the Medicare Administrative Contractor (MAC) gives consideration to the physical… It has been revised once since publication and binds every Medicare Administrative Contractor nationally.
Item or service described
Coverage of Services and Supplies Incident to a Physician's Services
Where a physician establishes an office within a nursing home or other institution, coverage of services and supplies furnished in the office must be determined in accordance with the "incident to a physician's professional service" provision, as in any physician's office. A physician's office within an institution must be confined to a separately identified part of the facility which is used solely as the physician's office and cannot be construed to extend throughout the entire institution. Thus, services performed outside the "office" area would be subject to the coverage rules applicable to services furnished outside the office setting.
Indications and limitations of coverage
In order to accurately apply the criteria in the Medicare Benefit Policy Manual , Chapters 6, §20.4.1, or Chapter 15, “Covered Medical and Other Health Services,” §60.1, the Medicare Administrative Contractor (MAC) gives consideration to the physical proximity of the institution and physician’s office. When his office is located within a facility, a physician may not be reimbursed for services, supplies, and use of equipment which fall outside the scope of services “commonly furnished” in physician’s offices generally, even though such services may be furnished in his institutional office. Additionally, make a distinction between the physician’s office practice and the institution, especially when the physician is administrator or owner of the facility. Thus, for their services to be covered under the criteria in the Medicare Benefit Policy Manual , Chapter 6, §20.4.1, or the Medicare Benefit Policy Manual , Chapter 15, “Covered Medical and Other Health Services,” §60.1, 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. Finally, 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 Social Security Act.
Establishment of an office within an institution would not modify rules otherwise applicable for determining coverage of the physician’s personal professional services within the institution. However, in view of the opportunity afforded to a physician who maintains such an office for rendering services to a sizable number of patients in a short period of time or for performing frequent services for the same patient, claims for physicians’ services rendered under such circumstances would require careful evaluation by the MAC to assure that payment is made only for services that are reasonable and necessary.
Text reproduced from the CMS Medicare Coverage Database record for NCD 70.3 version 1. View the original on cms.gov.
Revision history
5/1989 - Added statutory authority citation. Effective date NA. (TN 36)
How this NCD shows up on remittances
A service denied under a National Coverage Determination returns CARC 50 (not deemed medically necessary) with remark N386 (decision based on an NCD); a denial citing a local policy instead carries N115. Because NCDs bind nationally, the appeal path is documentation that the patient meets the indications above, not a contractor-policy argument.
How QuickIntell applies NCD 70.3
QuickAuth checks the ordered service and diagnosis against NCD and LCD criteria before the encounter, QuickCode validates the diagnosis pairing on the claim, and QuickRCM routes CARC 50 denials with the policy text and the covered-code list attached so the appeal starts with evidence.
Frequently asked questions — NCD 70.3
What does NCD 70.3 cover?
In order to accurately apply the criteria in the Medicare Benefit Policy Manual , Chapters 6, §20.4.1, or Chapter 15, “Covered Medical and Other Health Services,” §60.1, the Medicare Administrative Contractor (MAC) gives consideration to the physical proximity of the institution and physician’s office. When his office is located within a facility, a physician may not be reimbursed for services, supplies, and use of… The full indications and limitations are reproduced on this page from the CMS Medicare Coverage Database.
When did NCD 70.3 take effect?
The current version (1) is effective This is a longstanding national coverage determination. The effective date of this version has not been posted., published in transmittal 36. This is the only published version.
Does a Local Coverage Determination override NCD 70.3?
No. A National Coverage Determination binds all Medicare Administrative Contractors; an LCD can only address services or circumstances the NCD leaves open. Claims denied under this NCD typically return CARC 50 with remark N386 (NCD) rather than N115 (LCD).
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 NCDs via the CMS Coverage APIVersion API snapshot 2026-09-27 · effective 2026-09-20 · file national-coverage-ncd.jsonSHA-256 a90fadfd264b9ef4…
Disclaimer
This page reproduces the CMS National Coverage Determination text and, for laboratory NCDs, the CMS ICD-10 edit lists, as an operational reference. Coverage decisions depend on the full policy, the claim and the contractor; nothing here is legal, clinical or billing advice. CPT codes are shown as numbers only; CPT descriptors are copyright AMA.