M07.661 — Enteropathic arthropathies, right knee
Is M07.661 billable?
Yes — M07.661 is billable for FY2027. M07.661 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M07.661 may be submitted for encounters from October 1, 2026 through September 30, 2027.
M07.661 at a glance
| Code | M07.661 |
|---|---|
| Description | Enteropathic arthropathies, right knee |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does M07.661 group to?
M07.661 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 M07.661 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under M07.66, the nearest indexed parent of M07.661. Use them to find the family, then select the specific code.
- Arthropathy › enteropathic › knee
Excludes1 — never code together — inherited from M07
The conditions below can never be reported together with M07.661 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- psoriatic arthropathies (L40.5-)
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M07.661, but a patient may have both at the same time. When documentation supports it, M07.661 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)
Code also — inherited from M07
Two codes may be needed to describe the condition fully. Whether M07.661 is sequenced first depends on the reason for the encounter.
How long has M07.661 existed?
M07.661 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.