Skip to content
Dx

ICD-10-CM 2027

ICD-10 code for ankle and tarsus enthesopathy

M77.5

Other enthesopathy of foot and ankle

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Enthesopathy (peripheral) › ankle and tarsus”. Page updated September 29, 2026.

About coding ankle and tarsus enthesopathy

The ICD-10-CM code for ankle and tarsus enthesopathy is M77.5 (Other enthesopathy of foot and ankle).

Within M77, choose M77.5 (Other enthesopathy of foot and ankle) only when documentation doesn't support a more specific option: medial epicondylitis (M77.0), lateral epicondylitis (M77.1), Periarthritis of wrist (M77.2), Calcaneal spur (M77.3), Metatarsalgia (M77.4), not elsewhere classified (M77.8) and enthesopathy, unspecified (M77.9).

To report this condition, pick the subcode that matches the documentation: M77.50 (ankle), M77.51 (ankle) and M77.52 (ankle).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2020 (title revised).

More specific ankle and tarsus enthesopathy codes (official index)

  • specified type NEC

Common questions about ankle and tarsus enthesopathy ICD-10 codes

What is the ICD-10 code for ankle and tarsus enthesopathy?

M77.5 — Other enthesopathy of foot and ankle (a header code; report a more specific subcode).

Is M77.5 billable?

No. M77.5 is a header code. Report one of its more specific subcodes instead.