2020 ICD-10-CM Diagnosis Code M77.1

Lateral epicondylitis

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • M77.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM M77.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M77.1 - other international versions of ICD-10 M77.1 may differ.
Applicable To
  • Tennis elbow
The following code(s) above M77.1 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 M77.1:
  • 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
Clinical Information
  • A condition characterized by pain in or near the lateral humeral epicondyle or in the forearm extensor muscle mass as a result of unusual strain. It occurs in tennis players as well as housewives, artisans, and violinists.
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

Diagnosis Index entries containing back-references to M77.1:

ICD-10-CM Codes Adjacent To M77.1
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
M77.21 Periarthritis, right wrist
M77.22 Periarthritis, left wrist
M77.3 Calcaneal spur
M77.30 …… unspecified foot
M77.31 …… right foot

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