M91 — Juvenile osteochondrosis of hip and pelvis
Is M91 billable?
No — M91 is a non-billable header code. M91 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 19 billable codes beneath M91.
Billable codes under this header
- M91.0Juvenile osteochondrosis of pelvis
- M91.10Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes], unspecified leg
- M91.11Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes], right leg
- M91.12Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes], left leg
- M91.20Coxa plana, unspecified hip
- M91.21Coxa plana, right hip
- M91.22Coxa plana, left hip
- M91.30Pseudocoxalgia, unspecified hip
- M91.31Pseudocoxalgia, right hip
- M91.32Pseudocoxalgia, left hip
- M91.40Coxa magna, unspecified hip
- M91.41Coxa magna, right hip
- M91.42Coxa magna, left hip
- M91.80Other juvenile osteochondrosis of hip and pelvis, unspecified leg
- M91.81Other juvenile osteochondrosis of hip and pelvis, right leg
- M91.82Other juvenile osteochondrosis of hip and pelvis, left leg
- M91.90Juvenile osteochondrosis of hip and pelvis, unspecified, unspecified leg
- M91.91Juvenile osteochondrosis of hip and pelvis, unspecified, right leg
- M91.92Juvenile osteochondrosis of hip and pelvis, unspecified, left leg
M91 at a glance
| Code | M91 |
|---|---|
| Description | Juvenile osteochondrosis of hip and pelvis |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with M91 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- slipped upper femoral epiphysis (nontraumatic) (M93.0-)
Excludes1 — never code together — inherited from M91-M94
The conditions below can never be reported together with M91 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- postprocedural chondropathies (M96.-)
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M91, but a patient may have both at the same time. When documentation supports it, M91 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)
What codes fall under M91? (7)
- M91.0Juvenile osteochondrosis of pelvis
- M91.1Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes]not billable
- M91.2Coxa plananot billable
- M91.3Pseudocoxalgianot billable
- M91.4Coxa magnanot billable
- M91.8Other juvenile osteochondrosis of hip and pelvisnot billable
- M91.9Juvenile osteochondrosis of hip and pelvis, unspecifiednot billable
How long has M91 existed?
M91 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.