ICD-10-CM › S00-T88 › S60-S69 › S66.59 Other injury of intrinsic muscle,... › S66.597

S66.597

Other injury of intrinsic muscle, fascia and tendon of left little finger 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 3 more specific codes instead:

  • S66.597A Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.597D Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.597S Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, sequela

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

What has happened to this code

Every change the publisher made, from 2014 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. FY2014 Added to the draft code set draft Other injury of intrinsic muscle, fascia and tendon of left little finger 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.

Inherited from S66 Injury of muscle, fascia and tendon at wrist and hand level

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)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
S66.590 Other injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level Not billable
S66.591 Other injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level Not billable
S66.592 Other injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level Not billable
S66.593 Other injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level Not billable
S66.594 Other injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level Not billable
S66.595 Other injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level Not billable
S66.596 Other injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level Not billable
S66.598 Other injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level Not billable
S66.599 Other injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level Not billable