M77

Non-billable

Other enthesopathies

M77 is the ICD-10-CM code for Other enthesopathies. It is a non-billable category code — use a more specific child code such as M77.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
8
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Excludes1 — not coded here

Excludes2 — not included here

  • bursitis due to use, overuse and pressure (M70.-)
  • osteophyte (M25.7)
  • spinal enthesopathy (M46.0-)

Frequently asked questions

What is ICD-10 code M77?
M77 is the ICD-10-CM code for "Other enthesopathies". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M77 a billable code?
No — M77 is a non-billable header code. Use a more specific child code (such as M77.0) for billing.
What are the subcodes of M77?
M77 has 8 more specific child codes, including M77.0, M77.1, M77.2.
What is excluded from M77?
Excludes1 (not coded here): bursitis NOS (M71.9-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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