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ICD-10-CM 2027

ICD-10 code for acromioclavicular joint chondromalacia

M94.21

Chondromalacia, shoulder

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Chondromalacia (systemic) › acromioclavicular joint”. Page updated September 29, 2026.

About coding acromioclavicular joint chondromalacia

The ICD-10-CM code for acromioclavicular joint chondromalacia is M94.21 (Chondromalacia, shoulder).

Within M94.2 (Chondromalacia), M94.21 is specifically for Chondromalacia, shoulder. Related codes cover unspecified site (M94.20), elbow (M94.22), wrist (M94.23), joints of hand (M94.24), hip (M94.25), knee (M94.26), ankle and joints of foot (M94.27), other site (M94.28) and 1 more.

To report this condition, pick the subcode that matches the documentation: M94.211 (shoulder), M94.212 (shoulder) and M94.219 (shoulder).

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 acromioclavicular joint chondromalacia ICD-10 codes

What is the ICD-10 code for acromioclavicular joint chondromalacia?

M94.21 — Chondromalacia, shoulder (a header code; report a more specific subcode).

Is M94.21 billable?

No. M94.21 is a header code. Report one of its more specific subcodes instead.