Is S66.419A a billable code?
Yes. S66.419A 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.
ICD-10-CM FY2027 diagnosis code
S66.419A: Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
S66.419A is a billable ICD-10-CM diagnosis code for strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with S66.419A already added.Good Faith EstimateStart a cost estimate with S66.419A already added.CMS-1500 Claim FormFill a claim form with S66.419A in box 21.
Other codes in S66.419 Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
S66.419A questions
What does S66.419A mean?
S66.419A is the ICD-10-CM code for Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial 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.