S66.899A

S66.899A: Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, initial encounter

Billable / specific codeICD-10-CMunspecified

S66.899A is a billable, specific ICD-10-CM code for other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, initial encounter. It is valid for submission on a claim.

Check S66.899A with the rest of the claim: free scrubber

7th character "A": initial encounter

The appropriate 7th character is to be added to each code from category S66

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above S66.899A

Not part of this code, but both may be coded when both are present.

Written on S66: Injury of muscle, fascia and tendon at wrist and hand level

sprain of joints and ligaments of wrist and hand (S63.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

7th character "A": initial encounter

Excludes2 inherited from the categories above S66.899A

Risk adjustment

Code history

Other codes under S66.899