ICD-10-CM FY2027 diagnosis code

S66.412D: Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

S66.412D is a billable ICD-10-CM diagnosis code for strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

S66.412D questions

Is S66.412D a billable code?

Yes. S66.412D is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does S66.412D mean?

S66.412D is the ICD-10-CM code for Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.