ICD-10-CM 2027
ICD-10 code for vertebrae chondrocalcinosis
From the official ICD-10-CM alphabetic index entry “Chondrocalcinosis › vertebrae”. Page updated September 29, 2026.
About coding vertebrae chondrocalcinosis
The ICD-10-CM code for vertebrae chondrocalcinosis is M11.28 (Other chondrocalcinosis, vertebrae).
Within M11.2 (other chondrocalcinosis), M11.28 is specifically for other chondrocalcinosis, vertebrae. Related codes cover unspecified site (M11.20), shoulder (M11.21), elbow (M11.22), wrist (M11.23), hand (M11.24), hip (M11.25), knee (M11.26), ankle and foot (M11.27) 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.
Common questions about vertebrae chondrocalcinosis ICD-10 codes
What is the ICD-10 code for vertebrae chondrocalcinosis?
- M11.28 — Other chondrocalcinosis, vertebrae.
Is M11.28 billable?
- Yes. M11.28 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M11.28 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M11.28 as a principal diagnosis.
Is M11.28 a CC or MCC?
- No. M11.28 is neither a CC nor an MCC under MS-DRG v44.0.