S66

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

Non-billable headerICD-10-CM

S66 is a non-billable header ICD-10-CM code for injury of muscle, fascia and tendon at wrist and hand level. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

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

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

any associated open wound (S61.-)

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.

Code to one of these instead S66

8 child codes. Green means billable.