ICD-10-CM M77 is the diagnosis code for Other enthesopathies. This code falls under the section "Other soft tissue disorders" within Chapter 13 â Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as M77. They are mutually exclusive:
The following conditions are not included in M77. If the patient has both, code each condition separately:
Understanding where M77 sits in the ICD-10-CM classification helps ensure proper coding:
No, M77 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
M77 is the ICD-10-CM diagnosis code for "Other enthesopathies". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
M77 is located in Section M70-M79 â "Other soft tissue disorders" within Chapter 13 of the ICD-10-CM Tabular List.
M77 has 8 sub-code(s) that provide more specific detail: M77.0, M77.1, M77.2, M77.3, M77.4 and more.
Use M77 when the patients documented diagnosis matches "Other enthesopathies" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Other enthesopathies is M77.
No, M77 is non-billable. Use a more specific sub-code for primary diagnosis billing.
M77 is in Chapter 13 of the ICD-10-CM Tabular List.
Type 1 Excludes for M77 include: bursitis NOS (M71.9-).
Yes, M77 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.