S66.523S

Laceration of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, sequela

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 7 never code together

Excludes2

injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level (S66.4-)S66.4-

S66code

Excludes2

Excludes2

Excludes2

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 3

A initial encounter

D subsequent encounter

S sequela this code

Instructional notes 4

S66code

Code also

Notes

Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Use additional code

Index entries leading here 1

Alongside this code 2 same parent — S66.523

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.