2018 ICD-10-CM Diagnosis Code M91.2

Coxa plana

Applicable To
  • Hip deformity due to previous juvenile osteochondrosis
The following code(s) above M91.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M91.2:
  • M00-M99
    2018 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • 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)
    Diseases of the musculoskeletal system and connective tissue
  • M91-M94
    2018 ICD-10-CM Range M91-M94


    Type 1 Excludes
    • postprocedural chondropathies (M96.-)
  • M91
    ICD-10-CM Diagnosis Code M91

    Juvenile osteochondrosis of hip and pelvis

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • slipped upper femoral epiphysis (nontraumatic) (M93.0)
    Juvenile osteochondrosis of hip and pelvis
Clinical Information Code History
Code annotations containing back-references to M91.2:

Diagnosis Index entries containing back-references to M91.2:

ICD-10-CM Codes Adjacent To M91.2
M90.872 Osteopathy in diseases classified elsewhere, left ankle and foot
M90.879 Osteopathy in diseases classified elsewhere, unspecified ankle and foot
M90.88 …… other site
M90.89 …… multiple sites
M91 Juvenile osteochondrosis of hip and pelvis
M91.0 Juvenile osteochondrosis of pelvis
M91.1 Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]
M91.10 …… unspecified leg
M91.11 …… right leg
M91.12 …… left leg
M91.2 Coxa plana
M91.20 …… unspecified hip
M91.21 …… right hip
M91.22 …… left hip
M91.3 Pseudocoxalgia
M91.30 …… unspecified hip
M91.31 …… right hip
M91.32 …… left hip
M91.4 Coxa magna
M91.40 …… unspecified hip
M91.41 …… right hip

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.