2021 ICD-10-CM Diagnosis Code M93.9

Osteochondropathy, unspecified

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • M93.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM M93.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M93.9 - other international versions of ICD-10 M93.9 may differ.
Applicable To
  • Apophysitis NOS
  • Epiphysitis NOS
  • Osteochondritis NOS
  • Osteochondrosis NOS
The following code(s) above M93.9 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 M93.9:
  • M00-M99
    2021 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
    2021 ICD-10-CM Range M91-M94


    Type 1 Excludes
    • postprocedural chondropathies (M96.-)
  • M93
    ICD-10-CM Diagnosis Code M93

    Other osteochondropathies

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • osteochondrosis of spine (M42.-)
    Other osteochondropathies
Clinical Information
  • Any of a group of bone disorders involving one or more ossification centers (epiphyses). It is characterized by degeneration or necrosis followed by revascularization and reossification. Osteochondrosis often occurs in children causing varying degrees of discomfort or pain. There are many eponymic types for specific affected areas, such as tarsal navicular (kohler disease) and tibial tuberosity (osgood-schlatter disease).
  • Inflammation of a bone and its overlaying cartilage.
  • Inflammation of both bone and cartilage.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To M93.9
M93.86 Other specified osteochondropathies lower leg
M93.861 Other specified osteochondropathies, right lower leg
M93.862 Other specified osteochondropathies, left lower leg
M93.869 Other specified osteochondropathies, unspecified lower leg
M93.87 Other specified osteochondropathies of ankle and foot
M93.871 Other specified osteochondropathies, right ankle and foot
M93.872 Other specified osteochondropathies, left ankle and foot
M93.879 Other specified osteochondropathies, unspecified ankle and foot
M93.88 …… other
M93.89 …… multiple sites
M93.9 Osteochondropathy, unspecified
M93.90 …… of unspecified site
M93.91 Osteochondropathy, unspecified of shoulder
M93.911 Osteochondropathy, unspecified, right shoulder
M93.912 Osteochondropathy, unspecified, left shoulder
M93.919 Osteochondropathy, unspecified, unspecified shoulder
M93.92 Osteochondropathy, unspecified of upper arm
M93.921 Osteochondropathy, unspecified, right upper arm
M93.922 Osteochondropathy, unspecified, left upper arm
M93.929 Osteochondropathy, unspecified, unspecified upper arm
M93.93 Osteochondropathy, unspecified of forearm

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