2019 ICD-10-CM Diagnosis Code M77

Other enthesopathies

    2016 2017 2018 2019 Non-Billable/Non-Specific Code
  • M77 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2019 edition of ICD-10-CM M77 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of M77 - other international versions of ICD-10 M77 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. 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.
  • bursitis NOS (
    ICD-10-CM Diagnosis Code M71.9

    Bursopathy, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Bursitis NOS
    M71.9-
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (M77) and the excluded code together.
  • bursitis due to use, overuse and pressure (
    ICD-10-CM Diagnosis Code M70
    • M70 Soft tissue disorders related to use, overuse...
      • M70.0 Crepitant synovitis (acute) (chronic) of hand...
        • M70.03 Crepitant synovitis (acute) (chronic), wrist
          • M70.031 Crepitant synovitis (acute) (chronic), right ...
          • M70.032 Crepitant synovitis (acute) (chronic), left w...
          • M70.039 Crepitant synovitis (acute) (chronic), unspec...
        • M70.04 Crepitant synovitis (acute) (chronic), hand
          • M70.041 Crepitant synovitis (acute) (chronic), right ...
          • M70.042 Crepitant synovitis (acute) (chronic), left h...
          • M70.049 Crepitant synovitis (acute) (chronic), unspec...
      • M70.1 Bursitis of hand
      • M70.2 Olecranon bursitis
      • M70.3 Other bursitis of elbow
      • M70.4 Prepatellar bursitis
      • M70.5 Other bursitis of knee
      • M70.6 Trochanteric bursitis
      • M70.7 Other bursitis of hip
      • M70.8 Other soft tissue disorders related to use, o...
        • M70.80 Other soft tissue disorders related to use, o...
        • M70.81 Other soft tissue disorders related to use, o...
          • M70.811 Other soft tissue disorders related to use, o...
          • M70.812 Other soft tissue disorders related to use, o...
          • M70.819 Other soft tissue disorders related to use, o...
        • M70.82 Other soft tissue disorders related to use, o...
          • M70.821 Other soft tissue disorders related to use, o...
          • M70.822 Other soft tissue disorders related to use, o...
          • M70.829 Other soft tissue disorders related to use, o...
        • M70.83 Other soft tissue disorders related to use, o...
          • M70.831 Other soft tissue disorders related to use, o...
          • M70.832 Other soft tissue disorders related to use, o...
          • M70.839 Other soft tissue disorders related to use, o...
        • M70.84 Other soft tissue disorders related to use, o...
          • M70.841 Other soft tissue disorders related to use, o...
          • M70.842 Other soft tissue disorders related to use, o...
          • M70.849 Other soft tissue disorders related to use, o...
        • M70.85 Other soft tissue disorders related to use, o...
          • M70.851 Other soft tissue disorders related to use, o...
          • M70.852 Other soft tissue disorders related to use, o...
          • M70.859 Other soft tissue disorders related to use, o...
        • M70.86 Other soft tissue disorders related to use, o...
          • M70.861 Other soft tissue disorders related to use, o...
          • M70.862 Other soft tissue disorders related to use, o...
          • M70.869 Other soft tissue disorders related to use, o...
        • M70.87 Other soft tissue disorders related to use, o...
          • M70.871 Other soft tissue disorders related to use, o...
          • M70.872 Other soft tissue disorders related to use, o...
          • M70.879 Other soft tissue disorders related to use, o...
        • M70.88 Other soft tissue disorders related to use, o...
        • M70.89 Other soft tissue disorders related to use, o...
      • M70.9 Unspecified soft tissue disorder related to u...
        • M70.90 Unspecified soft tissue disorder related to u...
        • M70.91 Unspecified soft tissue disorder related to u...
          • M70.911 Unspecified soft tissue disorder related to u...
          • M70.912 Unspecified soft tissue disorder related to u...
          • M70.919 Unspecified soft tissue disorder related to u...
        • M70.92 Unspecified soft tissue disorder related to u...
          • M70.921 Unspecified soft tissue disorder related to u...
          • M70.922 Unspecified soft tissue disorder related to u...
          • M70.929 Unspecified soft tissue disorder related to u...
        • M70.93 Unspecified soft tissue disorder related to u...
          • M70.931 Unspecified soft tissue disorder related to u...
          • M70.932 Unspecified soft tissue disorder related to u...
          • M70.939 Unspecified soft tissue disorder related to u...
        • M70.94 Unspecified soft tissue disorder related to u...
          • M70.941 Unspecified soft tissue disorder related to u...
          • M70.942 Unspecified soft tissue disorder related to u...
          • M70.949 Unspecified soft tissue disorder related to u...
        • M70.95 Unspecified soft tissue disorder related to u...
          • M70.951 Unspecified soft tissue disorder related to u...
          • M70.952 Unspecified soft tissue disorder related to u...
          • M70.959 Unspecified soft tissue disorder related to u...
        • M70.96 Unspecified soft tissue disorder related to u...
          • M70.961 Unspecified soft tissue disorder related to u...
          • M70.962 Unspecified soft tissue disorder related to u...
          • M70.969 Unspecified soft tissue disorder related to u...
        • M70.97 Unspecified soft tissue disorder related to u...
          • M70.971 Unspecified soft tissue disorder related to u...
          • M70.972 Unspecified soft tissue disorder related to u...
          • M70.979 Unspecified soft tissue disorder related to u...
        • M70.98 Unspecified soft tissue disorder related to u...
        • M70.99 Unspecified soft tissue disorder related to u...
    M70.-
    )
  • osteophyte (
    ICD-10-CM Diagnosis Code M25.7

    Osteophyte

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    M25.7
    )
  • spinal enthesopathy (
    ICD-10-CM Diagnosis Code M46.0

    Spinal enthesopathy

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Applicable To
    • Disorder of ligamentous or muscular attachments of spine
    M46.0-
    )
The following code(s) above M77 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:
  • M00-M99
    2019 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
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
ICD-10-CM Codes Adjacent To M77
M76.819 …… unspecified leg
M76.82 Posterior tibial tendinitis
M76.821 …… right leg
M76.822 …… left leg
M76.829 …… unspecified leg
M76.89 Other specified enthesopathies of lower limb, excluding foot
M76.891 Other specified enthesopathies of right lower limb, excluding foot
M76.892 Other specified enthesopathies of left lower limb, excluding foot
M76.899 Other specified enthesopathies of unspecified lower limb, excluding foot
M76.9 Unspecified enthesopathy, lower limb, excluding foot
M77 Other enthesopathies
M77.0 Medial epicondylitis
M77.00 …… unspecified elbow
M77.01 …… right elbow
M77.02 …… left elbow
M77.1 Lateral epicondylitis
M77.10 …… unspecified elbow
M77.11 …… right elbow
M77.12 …… left elbow
M77.2 Periarthritis of wrist
M77.20 Periarthritis, unspecified wrist

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