2020 ICD-10-CM Diagnosis Code M77.5

Other enthesopathy of foot and ankle

    2016 2017 2018 2019 2020 - Revised Code Non-Billable/Non-Specific Code
  • M77.5 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • ICD-10-CM M77.5 is a revised 2020 ICD-10-CM code that became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M77.5 - other international versions of ICD-10 M77.5 may differ.
The following code(s) above M77.5 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 M77.5:
  • M00-M99
    2020 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • 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
  • M77
    ICD-10-CM Diagnosis Code M77

    Other enthesopathies

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    • bursitis due to use, overuse and pressure (M70.-)
    • osteophyte (M25.7)
    • spinal enthesopathy (M46.0-)
    Other enthesopathies
Approximate Synonyms
  • Capsulitis of ankle
  • Capsulitis of tarsus
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): Revised code
    • New description: Other enthesopathy of foot and ankle
    • 2019 description: Other enthesopathy of foot
Code annotations containing back-references to M77.5:
  • Type 2 Excludes: M76
    ICD-10-CM Diagnosis Code M76

    Enthesopathies, lower limb, excluding foot

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • bursitis due to use, overuse and pressure (M70.-)
    • enthesopathies of ankle and foot (M77.5-)

Diagnosis Index entries containing back-references to M77.5:
  • Enthesopathy (peripheral) M77.9
    ICD-10-CM Diagnosis Code M77.9

    Enthesopathy, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Bone spur NOS
    • Capsulitis NOS
    • Periarthritis NOS
    • Tendinitis NOS
    • ankle and tarsus M77.5-
    • foot NEC M77.9
      ICD-10-CM Diagnosis Code M77.9

      Enthesopathy, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Bone spur NOS
      • Capsulitis NOS
      • Periarthritis NOS
      • Tendinitis NOS
      • specified type NEC M77.5-
    • lower limb (excluding foot) M76.9
      ICD-10-CM Diagnosis Code M76.9

      Unspecified enthesopathy, lower limb, excluding foot

        2016 2017 2018 2019 2020 Billable/Specific Code

ICD-10-CM Codes Adjacent To M77.5
M77.21 Periarthritis, right wrist
M77.22 Periarthritis, left wrist
M77.3 Calcaneal spur
M77.30 …… unspecified foot
M77.31 …… right foot
M77.32 …… left foot
M77.4 Metatarsalgia
M77.40 …… unspecified foot
M77.41 …… right foot
M77.42 …… left foot
M77.5 Other enthesopathy of foot and ankle
M77.50 Other enthesopathy of unspecified foot and ankle
M77.51 Other enthesopathy of right foot and ankle
M77.52 Other enthesopathy of left foot and ankle
M77.8 Other enthesopathies, not elsewhere classified
M77.9 Enthesopathy, unspecified
M79 Other and unspecified soft tissue disorders, not elsewhere classified
M79.0 Rheumatism, unspecified
M79.1 Myalgia
M79.10 …… unspecified site
M79.11 …… of mastication muscle

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