ICD-10 Code for Rheumatism
Also indexed as (articular) (neuralgic) (nonarticular)
The ICD-10-CM code for rheumatism is M79.0 — Rheumatism, unspecified. This is the code the Alphabetic Index gives for rheumatism with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
M79.0 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which rheumatism code should you use?
The Alphabetic Index lists 13 codes under Rheumatism. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
Rheumatism palindromic
| ankle | M12.37Not billable | Palindromic rheumatism, ankle and foot |
| elbow | M12.32Not billable | Palindromic rheumatism, elbow |
| foot joint | M12.37Not billable | Palindromic rheumatism, ankle and foot |
| hand joint | M12.34Not billable | Palindromic rheumatism, hand |
| hip | M12.35Not billable | Palindromic rheumatism, hip |
| knee | M12.36Not billable | Palindromic rheumatism, knee |
| multiple site | M12.39 | Palindromic rheumatism, multiple sites |
| shoulder | M12.31Not billable | Palindromic rheumatism, shoulder |
| specified joint NEC | M12.38 | Palindromic rheumatism, other specified site |
| vertebrae | M12.38 | Palindromic rheumatism, other specified site |
| wrist | M12.33Not billable | Palindromic rheumatism, wrist |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources