ICD-10-CM 2027 diagnosis code
S66.32Laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
S66.32 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it and add the required 7th character.Short description: Lacerat extn musc/fasc/tend and unsp finger at wrs/hnd lv
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S66.32
S66.32 is the ICD-10-CM diagnosis code for laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level. It belongs to category S66 (injury of muscle, fascia and tendon at wrist and hand level), block S60-S69 (injuries to the wrist, hand and fingers) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.
Within S66.3, choose S66.32 (Laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level) only when documentation doesn't support a more specific option: unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level (S66.30), strain of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level (S66.31) and other injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level (S66.39).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category S66
- S66.320Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level
- S66.321Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level
- S66.322Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
- S66.323Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
- S66.324Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
- S66.325Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
- S66.326Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand level
- S66.327Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand level
- S66.328Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand level
- S66.329Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Notes that apply from higher levels
Instructions written at a parent level also apply to S66.32.
› From S66.3 Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
- Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level (S66.2-)
Broader instructions also apply from S60-S69 Injuries to the wrist, hand and fingers and Chapter 19: Injury, poisoning and certain other consequences of external causes.
Alphabetic index entries
4 entriesTerms in the official ICD-10-CM index that lead to S66.32.
- Injury › muscle (and fascia) (and tendon) › finger › index › extensor (forearm level) › hand level › laceration
- Injury › muscle (and fascia) (and tendon) › finger › little › extensor (forearm level) › hand level › laceration
- Injury › muscle (and fascia) (and tendon) › finger › middle › extensor (forearm level) › hand level › laceration
- Injury › muscle (and fascia) (and tendon) › finger › ring › extensor (forearm level) › hand level › laceration
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about S66.32
Is S66.32 billable?
- No. S66.32 is a header code. Report one of its more specific subcodes instead.