M06.821 — Other specified rheumatoid arthritis, right elbow
Is M06.821 billable?
Yes, but M06.821 is an unspecified code. M06.821 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, M06.821 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting M06.821 — the more specific alternatives are listed below.
M06.821 at a glance
| Code | M06.821 |
|---|---|
| Description | Other specified rheumatoid arthritis, right elbow |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does M06.821 group to?
M06.821 sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 545Connective Tissue Disorders with MCCmedical
- 546Connective Tissue Disorders with CCmedical
- 547Connective Tissue Disorders without CC/MCCmedical
How is M06.821 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under M06.82, the nearest indexed parent of M06.821. Use them to find the family, then select the specific code.
- Arthritis, arthritic › rheumatoid › specified type NEC › elbow (acute) (chronic) (nonpyogenic) (subacute)
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M06.821, but a patient may have both at the same time. When documentation supports it, M06.821 and the excluded code may both be reported.
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
How long has M06.821 existed?
M06.821 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.