ICD-10-CM 2027 diagnosis code
M77.3Calcaneal spur
M77.3 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About M77.3
M77.3 is the ICD-10-CM diagnosis code for Calcaneal spur. It belongs to category M77 (other enthesopathies), block M70-M79 (other soft tissue disorders) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within M77 (other enthesopathies), M77.3 is specifically for Calcaneal spur. Related codes cover medial epicondylitis (M77.0), lateral epicondylitis (M77.1), Periarthritis of wrist (M77.2), Metatarsalgia (M77.4), other enthesopathy of foot and ankle (M77.5), not elsewhere classified (M77.8) and enthesopathy, unspecified (M77.9).
To report this condition, pick the subcode that matches the documentation: M77.30 (unspecified foot), M77.31 (right foot) and M77.32 (left foot).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under M77.3
Notes that apply from higher levels
Instructions written at a parent level also apply to M77.3.
› From M77 Other enthesopathies
Broader instructions also apply from Chapter 13: Diseases of the musculoskeletal system and connective tissue.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to M77.3.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about M77.3
Is M77.3 billable?
- No. M77.3 is a header code. Report one of its more specific subcodes instead.