2021 ICD-10-CM Diagnosis Code M77.4

Metatarsalgia

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • M77.4 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 M77.4 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M77.4 - other international versions of ICD-10 M77.4 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M77.4. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Morton's metatarsalgia (
    ICD-10-CM Diagnosis Code G57.6

    Lesion of plantar nerve

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Morton's metatarsalgia
    G57.6
    )
The following code(s) above M77.4 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 M77.4:
  • M00-M99
    2021 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 2021 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
Clinical Information
  • Pain in the region of the metatarsus. It can include pain in the metatarsal bones; metatarsophalangeal joint; and/or intermetatarsal joints (tarsal joints).
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

Diagnosis Index entries containing back-references to M77.4:

ICD-10-CM Codes Adjacent To M77.4
M77.11 …… right elbow
M77.12 …… left elbow
M77.2 Periarthritis of wrist
M77.20 Periarthritis, unspecified wrist
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

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