ICD-10-CM diagnosis code
M79.3 Panniculitis, unspecified
- Billable
- Yes, a complete code (FY2026)
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Other codes in M79
52 complete codes in this category.
- M79.0Rheumatism, unspecified
- M79.10Myalgia, unspecified site
- M79.11Myalgia of mastication muscle
- M79.12Myalgia of auxiliary muscles, head and neck
- M79.18Myalgia, other site
- M79.2Neuralgia and neuritis, unspecified
- M79.3Panniculitis, unspecified
- M79.4Hypertrophy of (infrapatellar) fat pad
- M79.5Residual foreign body in soft tissue
- M79.601Pain in right arm
- M79.602Pain in left arm
- M79.603Pain in arm, unspecified
Documentation tips
- Make sure the note supports every element of the title, “Panniculitis, unspecified”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to M79.
The international WHO ICD-10 also has M79.3, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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