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ICD-10-CM Current in FY 2027

S66.521D

Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where S66.521D sits in the official hierarchy. Each level is the code it is classified under.

  1. S66 Injury of muscle, fascia and tendon at wrist and hand level
  2. S66.5 Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
  3. S66.52 Laceration of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
  4. S66.521 Parent Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
  5. S66.521D This code Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter

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.

Excludes2

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

Inherited from S66.5 — Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

Excludes2

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

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

Code Also

any associated open wound ( S61 .-)

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

7th Character

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

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

7th Character

A - initial encounter

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

7th Character

D - subsequent encounter

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

7th Character

S - sequela

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

Version History

How S66.521D appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter

  2. FY 2026 Effective

    Unchanged

    Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter

Related Codes

Other codes under S66.521

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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