M11.171 Familial chondrocalcinosis, right ankle and foot

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 553-554 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 712.37 Chondrocalcinosis, unspecified, ankle and foot (approximate)

Code annotations containing back-references to M11.171

Back-references to M11.1

• Type 1 Excludes: E83.5 Disorders of calcium metabolism ("chondrocalcinosis (M11.1-M11.2)")
• Type 2 Excludes: M24.1 Other articular cartilage disorders ("chondrocalcinosis (M11.1-, M11.2-)")

Nearby codes

• M11.16 Familial chondrocalcinosis, knee
• M11.161 Familial chondrocalcinosis, right knee
• M11.162 Familial chondrocalcinosis, left knee
• M11.169 Familial chondrocalcinosis, unspecified knee
• M11.17 Familial chondrocalcinosis, ankle and foot
• M11.171 Familial chondrocalcinosis, right ankle and foot (this code)
• M11.172 Familial chondrocalcinosis, left ankle and foot
• M11.179 Familial chondrocalcinosis, unspecified ankle and foot
• M11.18 Familial chondrocalcinosis, vertebrae
• M11.19 Familial chondrocalcinosis, multiple sites
• M11.2 Other chondrocalcinosis