S66.506S
✓ BillableUnspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, sequela
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ Excludes2
inheritedRules inherited from parent codes.
Clinical Description
ICD-10-CM code S66.506S represents unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, sequela. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code S66.506S?
ICD-10-CM code S66.506S is "Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, sequela". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is S66.506S a billable ICD-10 code?
Yes, S66.506S is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Can S66.506S be coded with other codes?
S66.506S has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in S66.506
Other codes in the same category that may be relevant for differential coding:
🧪 Validate Combinations
Add S66.506S to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)