S56.42

Hierarchy

Where S56.42 sits in the official hierarchy. Each level is the code it is classified under.

1. S56 Injury of muscle, fascia and tendon at forearm level
2. S56.4 Parent Injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
3. S56.42 This code Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

• S56.421 Laceration of extensor muscle, fascia and tendon of right index finger at forearm level Has subcodes
• S56.422 Laceration of extensor muscle, fascia and tendon of left index finger at forearm level Has subcodes
• S56.423 Laceration of extensor muscle, fascia and tendon of right middle finger at forearm level Has subcodes
• S56.424 Laceration of extensor muscle, fascia and tendon of left middle finger at forearm level Has subcodes
• S56.425 Laceration of extensor muscle, fascia and tendon of right ring finger at forearm level Has subcodes
• S56.426 Laceration of extensor muscle, fascia and tendon of left ring finger at forearm level Has subcodes
• S56.427 Laceration of extensor muscle, fascia and tendon of right little finger at forearm level Has subcodes
• S56.428 Laceration of extensor muscle, fascia and tendon of left little finger at forearm level Has subcodes
• S56.429 Laceration of extensor muscle, fascia and tendon of unspecified finger at forearm level Has subcodes

Version History

How S56.42 appears in each release imported from the official files, newest first.

1. FY 2027 Effective October 1, 2026

   Current

   Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level

2. FY 2026 Effective October 1, 2025

   Unchanged

   Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level