ICD-10-CM › S00-T88 › S60-S69 › S codes › S66

S66

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

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 8 more specific codes instead:

  • S66.0 Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level (also a header)
  • S66.1 Injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level (also a header)
  • S66.2 Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level (also a header)
  • S66.3 Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level (also a header)
  • S66.4 Injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level (also a header)
  • S66.5 Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level (also a header)
  • S66.8 Injury of other specified muscles, fascia and tendons at wrist and hand level (also a header)
  • S66.9 Injury of unspecified muscle, fascia and tendon at wrist and hand level (also a header)

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Injury of muscle, fascia and tendon at wrist and hand level

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Seventh character required

  • The appropriate 7th character is to be added to each code from category S66

Excludes2 - not included here

  • sprain of joints and ligaments of wrist and hand (S63.-)

Code also

  • any associated open wound (S61.-)

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

Excludes2 - not included here

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)