M11.261 — Other chondrocalcinosis, right knee
Is M11.261 billable?
Yes — M11.261 is billable for FY2027. M11.261 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M11.261 may be submitted for encounters from October 1, 2026 through September 30, 2027.
M11.261 at a glance
| Code | M11.261 |
|---|---|
| Description | Other chondrocalcinosis, right knee |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does M11.261 group to?
M11.261 sits in MDC 08 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 553Bone Diseases and Arthropathies with MCCmedical
- 554Bone Diseases and Arthropathies without MCCmedical
How is M11.261 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under M11.26, the nearest indexed parent of M11.261. Use them to find the family, then select the specific code.
- Chondrocalcinosis › knee
- Chondrocalcinosis › specified type NEC › knee
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M11.261, but a patient may have both at the same time. When documentation supports it, M11.261 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 M11.261 existed?
M11.261 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.