S66.009A
BillableUnspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
S66.009A is the ICD-10-CM code for Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter. It is a billable, specific code valid for reimbursement.
S00-T88 Injury, poisoning and certain other consequences of external causes
No additional coding notes for this code.
Frequently asked questions
- What is ICD-10 code S66.009A?
- S66.009A is the ICD-10-CM code for "Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
- Is S66.009A a billable code?
- Yes — S66.009A is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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