ICD-10-CM 2027
ICD-10 code for chondrocalcinosis
From the official ICD-10-CM alphabetic index entry “Chondrocalcinosis”. Page updated September 29, 2026.
About coding chondrocalcinosis
The ICD-10-CM code for chondrocalcinosis is M11.20 (Other chondrocalcinosis, unspecified site). The official index lists 32 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M11.20.
Within M11.2, choose M11.20 (unspecified site) only when documentation doesn't support a more specific option: shoulder (M11.21), elbow (M11.22), wrist (M11.23), hand (M11.24), hip (M11.25), knee (M11.26), ankle and foot (M11.27), vertebrae (M11.28) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 553 (Bone Diseases and Arthropathies with MCC, relative weight 1.2494) and DRG 554 (Bone Diseases and Arthropathies without MCC, relative weight 0.8331), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific chondrocalcinosis codes (official index)
- ankle M11.27 — Other chondrocalcinosis, ankle and foot
- elbow M11.22 — Other chondrocalcinosis, elbow
- familial M11.10 — Familial chondrocalcinosis, unspecified site
- ankle M11.17 — Familial chondrocalcinosis, ankle and foot
- elbow M11.12 — Familial chondrocalcinosis, elbow
- foot joint M11.17 — Familial chondrocalcinosis, ankle and foot
- hand joint M11.14 — Familial chondrocalcinosis, hand
- hip M11.15 — Familial chondrocalcinosis, hip
- knee M11.16 — Familial chondrocalcinosis, knee
- multiple site M11.19 — Familial chondrocalcinosis, multiple sites
- shoulder M11.11 — Familial chondrocalcinosis, shoulder
- vertebrae M11.18 — Familial chondrocalcinosis, vertebrae
- wrist M11.13 — Familial chondrocalcinosis, wrist
- foot joint M11.27 — Other chondrocalcinosis, ankle and foot
- hand joint M11.24 — Other chondrocalcinosis, hand
- hip M11.25 — Other chondrocalcinosis, hip
- knee M11.26 — Other chondrocalcinosis, knee
- multiple site M11.29 — Other chondrocalcinosis, multiple sites
- shoulder M11.21 — Other chondrocalcinosis, shoulder
- vertebrae M11.28 — Other chondrocalcinosis, vertebrae
- specified type NEC M11.20 — Other chondrocalcinosis, unspecified site
- ankle M11.27 — Other chondrocalcinosis, ankle and foot
- elbow M11.22 — Other chondrocalcinosis, elbow
- foot joint M11.27 — Other chondrocalcinosis, ankle and foot
- hand joint M11.24 — Other chondrocalcinosis, hand
- hip M11.25 — Other chondrocalcinosis, hip
- knee M11.26 — Other chondrocalcinosis, knee
- multiple site M11.29 — Other chondrocalcinosis, multiple sites
- shoulder M11.21 — Other chondrocalcinosis, shoulder
- vertebrae M11.28 — Other chondrocalcinosis, vertebrae
- wrist M11.23 — Other chondrocalcinosis, wrist
- wrist M11.23 — Other chondrocalcinosis, wrist
Common questions about chondrocalcinosis ICD-10 codes
What is the ICD-10 code for chondrocalcinosis?
- M11.20 — Other chondrocalcinosis, unspecified site. More specific codes apply when the documentation supports them: M11.27, M11.22, M11.10, M11.17 and others below.
What is the ICD-10 code for ankle chondrocalcinosis?
- M11.27 — Other chondrocalcinosis, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for elbow chondrocalcinosis?
- M11.22 — Other chondrocalcinosis, elbow (header code; choose a more specific subcode).
What is the ICD-10 code for familial chondrocalcinosis?
- M11.10 — Familial chondrocalcinosis, unspecified site.
What is the ICD-10 code for foot joint chondrocalcinosis?
- M11.27 — Other chondrocalcinosis, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for hand joint chondrocalcinosis?
- M11.24 — Other chondrocalcinosis, hand (header code; choose a more specific subcode).
What is the ICD-10 code for hip chondrocalcinosis?
- M11.25 — Other chondrocalcinosis, hip (header code; choose a more specific subcode).
Is M11.20 billable?
- Yes. M11.20 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M11.20 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M11.20 as a principal diagnosis.
Is M11.20 a CC or MCC?
- No. M11.20 is neither a CC nor an MCC under MS-DRG v44.0.