MedCodeSearch
ICD-10-CM Current in FY 2027

T23.42

Corrosion of unspecified degree of single finger (nail) except thumb

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

Hierarchy

Where T23.42 sits in the official hierarchy. Each level is the code it is classified under.

  1. T23 Burn and corrosion of wrist and hand
  2. T23.4 Parent Corrosion of unspecified degree of wrist and hand
  3. T23.42 This code Corrosion of unspecified degree of single finger (nail) except thumb

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.

Code First

(T51-T65) to identify chemical and intent

Inherited from T23.4 — Corrosion of unspecified degree of wrist and hand

Use Additional Code

external cause code to identify place ( Y92 )

Inherited from T23.4 — Corrosion of unspecified degree of wrist and hand

7th Character

The appropriate 7th character is to be added to each code from category T23

Inherited from T23 — Burn and corrosion of wrist and hand

7th Character

A - initial encounter

Inherited from T23 — Burn and corrosion of wrist and hand

7th Character

D - subsequent encounter

Inherited from T23 — Burn and corrosion of wrist and hand

7th Character

S - sequela

Inherited from T23 — Burn and corrosion of wrist and hand

More Specific Codes

3 codes under T23.42

Version History

How T23.42 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Corrosion of unspecified degree of single finger (nail) except thumb

  2. FY 2026 Effective

    Unchanged

    Corrosion of unspecified degree of single finger (nail) except thumb

Related Codes

Other codes under T23.4

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)

MedCodeSearch is an independent reference service and is not affiliated with CMS, CDC, or the U.S. government.

Look up another code

Search ICD-10-CM, ICD-10-PCS and HCPCS Level II by code or description.