S66.012A
BillableStrain of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
S66.012A is the ICD-10-CM code for Strain of long flexor muscle, fascia and tendon of left 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 S66.012A?
- S66.012A is the ICD-10-CM code for "Strain of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
- Is S66.012A a billable code?
- Yes — S66.012A 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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