Federal regulation adopts the AMA's CPT codes as the standard every physician claim must use
45 CFR 162.1002, the HIPAA code set rule, adopts CPT-4 "as maintained and distributed by the American Medical Association" as the standard medical data code set for physician services and a list of other services.
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Caveat on this rating: The 2024 CFR edition is the one read; the section has been amended over time (the ICD-10 effective date shows that) and a later edition may differ in detail. Adoption of a code set is not a finding about its owner's pricing or conduct.
Significant findings
Section 162.1002 of title 45 of the Code of Federal Regulations, "Medical data code sets", is the HIPAA Administrative Simplification rule that names the code sets covered entities must use in standard health care transactions.
Among the code sets it adopts is "Current Procedural Terminology, Fourth Edition (CPT-4), as maintained and distributed by the American Medical Association", in combination with the Healthcare Common Procedure Coding System, for "physician services", "physical and occupational therapy services", "radiologic procedures", "clinical laboratory tests", "other medical diagnostic procedures", "hearing and vision services", and "transportation services including ambulance". The same section adopts the "International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM)" for diseases, injuries, impairments, other health problems and their causes, effective October 1, 2015.
Worth asking
The regulation is the government's, not the AMA's, and it adopted a code set that already existed rather than creating one. What it did was make a privately owned, copyrighted code set the compulsory language of every physician claim in the country, including every psychotherapy session and every psychological test billed to an insurer. The previous row shows what that is worth to the owner. The regulation says nothing about what may be charged for it, and neither does this row.
Source
45 CFR § 162.1002, Medical data code sets — US Department of Health and Human Services (HIPAA Administrative Simplification) (2024)
How this was scored
- Study design
- not recorded
- Funding
- not recorded
- Published in
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- Sample size
- not recorded
- Preregistered
- not recorded
- Conflicts disclosed
- not recorded
- Independent of proponent
- not recorded
- Retracted
- No
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Published September 21, 2026.
Questions
How strong is the evidence behind this?
veisund rates this source "not yet assessed". We have not finished checking this source. No judgement either way. One caveat travels with that badge: The 2024 CFR edition is the one read; the section has been amended over time (the ICD-10 effective date shows that) and a later edition may differ in detail. Adoption of a code set is not a finding about its owner's pricing or conduct. The score is calculated from recorded facts about the source — study design, funding, publication venue, sample size, preregistration — not typed in by an editor.
What is the source for this?
45 CFR § 162.1002, Medical data code sets — US Department of Health and Human Services (HIPAA Administrative Simplification) (2024). The full source is linked on this page so you can read it yourself.
Is this medical advice?
This is information to bring to your prescriber, not medical advice and not a reason to change anything on your own. Nothing here is an instruction to stop or reduce a medication. If you are in crisis, call or text 988.
This is information to bring to your prescriber, not medical advice and not a reason to change anything on your own. Nothing here is an instruction to stop or reduce a medication. If you are in crisis, call or text 988.