ICD-10-CM diagnosis code
M12.39 Palindromic rheumatism, multiple sites
- Billable
- Yes, a complete code (FY2026)
- Category
- M12 Other specific arthropathies
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Other codes in M12
169 complete codes in this category.
- M12.362Palindromic rheumatism, left knee
- M12.369Palindromic rheumatism, unspecified knee
- M12.371Palindromic rheumatism, right ankle and foot
- M12.372Palindromic rheumatism, left ankle and foot
- M12.379Palindromic rheumatism, unspecified ankle and foot
- M12.38Palindromic rheumatism, other specified site
- M12.39Palindromic rheumatism, multiple sites
- M12.40Intermittent hydrarthrosis, unspecified site
- M12.411Intermittent hydrarthrosis, right shoulder
- M12.412Intermittent hydrarthrosis, left shoulder
- M12.419Intermittent hydrarthrosis, unspecified shoulder
- M12.421Intermittent hydrarthrosis, right elbow
Documentation tips
- Make sure the note supports every element of the title, “Palindromic rheumatism, multiple sites”: 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 M12.
The international WHO ICD-10 also has M12, 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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