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ICD-10-CM 2027

ICD-10 code for knee chondrocalcinosis

M11.26

Other chondrocalcinosis, knee

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Chondrocalcinosis › knee”. Page updated September 29, 2026.

About coding knee chondrocalcinosis

The ICD-10-CM code for knee chondrocalcinosis is M11.26 (Other chondrocalcinosis, knee).

Within M11.2 (other chondrocalcinosis), M11.26 is specifically for other chondrocalcinosis, knee. Related codes cover unspecified site (M11.20), shoulder (M11.21), elbow (M11.22), wrist (M11.23), hand (M11.24), hip (M11.25), ankle and foot (M11.27), vertebrae (M11.28) and 1 more.

To report this condition, pick the subcode that matches the documentation: M11.261 (knee), M11.262 (knee) and M11.269 (knee).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about knee chondrocalcinosis ICD-10 codes

What is the ICD-10 code for knee chondrocalcinosis?

M11.26 — Other chondrocalcinosis, knee (a header code; report a more specific subcode).

Is M11.26 billable?

No. M11.26 is a header code. Report one of its more specific subcodes instead.