S66.318S

S66.318S: Strain of extensor muscle, fascia and tendon of other finger at wrist and hand level, sequela

Billable / specific codeICD-10-CMPOA exempt

S66.318S is a billable, specific ICD-10-CM code for strain of extensor muscle, fascia and tendon of other finger at wrist and hand level, sequela. It is valid for submission on a claim.

Check S66.318S with the rest of the claim: free scrubber

7th character "S": sequela

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

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Strain of extensor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level

Excludes2 inherited from the categories above S66.318S

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

Written on S66.3: Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level (S66.2-)

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

S66.318S is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A53064Billing and Coding: Outpatient Occupational Therapy
A56787Billing and Coding: Nonvascular Extremity Ultrasound

Code history

Unchanged in every release from FY2024 to FY2027.