ICD-10-CM 2027 diagnosis code
M11.2Other chondrocalcinosis
M11.2 is a header code, so it can't be reported by itself. Choose one of the 10 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 M11.2
M11.2 is the ICD-10-CM diagnosis code for other chondrocalcinosis. It belongs to category M11 (other crystal arthropathies), block M05-M14 (inflammatory polyarthropathies) 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 10 subcodes must be used instead.
Within M11, choose M11.2 (Other chondrocalcinosis) only when documentation doesn't support a more specific option: Hydroxyapatite deposition disease (M11.0), familial chondrocalcinosis (M11.1), other specified crystal arthropathies (M11.8) and crystal arthropathy, unspecified (M11.9).
To report this condition, pick the subcode that matches the documentation: M11.20 (unspecified site), M11.21 (shoulder), M11.22 (elbow), M11.23 (wrist), M11.24 (hand), M11.25 (hip), M11.26 (knee), M11.27 (ankle and foot) and 2 more.
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 M11.2
- M11.20Other chondrocalcinosis, unspecified siteBillable
- M11.21Other chondrocalcinosis, shoulder
- M11.22Other chondrocalcinosis, elbow
- M11.23Other chondrocalcinosis, wrist
- M11.24Other chondrocalcinosis, hand
- M11.25Other chondrocalcinosis, hip
- M11.26Other chondrocalcinosis, knee
- M11.27Other chondrocalcinosis, ankle and foot
- M11.28Other chondrocalcinosis, vertebraeBillable
- M11.29Other chondrocalcinosis, multiple sitesBillable
Coding notes
- Chondrocalcinosis NOS
Notes that apply from higher levels
Instructions written at a parent level also apply to M11.2.
Broader instructions also apply from Chapter 13: Diseases of the musculoskeletal system and connective tissue.
Codes whose notes reference M11.2
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 M11.2
Is M11.2 billable?
- No. M11.2 is a header code. Report one of its more specific subcodes instead.