S66.3

Non-Billable

ChapterS00–T88

Ranksubcategory

Official Description

Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

Use a more specific code (0 billable, 4 non-billable)

S66.30Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelhas subcodes S66.31Strain of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelhas subcodes S66.32Laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelhas subcodes S66.39Other injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelhas subcodes

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)

Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level (S66.2-)

General instructions are available for the parent sections:

View CH19 Notes View S60-S69 Notes View S66 Notes

Clinical Hierarchy

BillableHas subcodes

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)

S60-S69Injuries to the wrist, hand and fingers (S60-S69)

S66Injury of muscle, fascia and tendon at wrist and hand level

S66.3Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNot billable

S66.30Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelSubcodes

S66.31Strain of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelSubcodes

S66.32Laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelSubcodes

S66.39Other injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to S66.3:

categoryS66

Injury of muscle, fascia and tendon at wrist and hand level

View context instructions

blockS60-S69

Injuries to the wrist, hand and fingers (S60-S69)

View context instructions

chapterCH19

Injury, poisoning and certain other consequences of external causes (S00-T88)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

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