S66.506A

S66.506A: Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter

Billable / specific codeICD-10-CMright

S66.506A is a billable, specific ICD-10-CM code for unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter. It is valid for submission on a claim.

Check S66.506A 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 S66.506A

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

Written on S66.5: Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level (S66.4-)

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.

Medicare coverage

S66.506A is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A53058Billing and Coding: Home Health Physical Therapy
A53065Billing and Coding: Outpatient Physical Therapy

Code history

Unchanged in every release from FY2024 to FY2027.