All ICD10 Codes

T23.5

Non-Billable
ChapterS00–T88
Ranksubcategory
Official Description

Corrosion of first degree of wrist and hand

Use a more specific code (0 billable, 9 non-billable)
T23.50Corrosion of first degree of hand, unspecified sitehas subcodesT23.51Corrosion of first degree of thumb (nail)has subcodesT23.52Corrosion of first degree of single finger (nail) except thumbhas subcodesT23.53Corrosion of first degree of multiple fingers (nail), not including thumbhas subcodesT23.54Corrosion of first degree of multiple fingers (nail), including thumbhas subcodesT23.55Corrosion of first degree of palmhas subcodesT23.56Corrosion of first degree of back of handhas subcodesT23.57Corrosion of first degree of wristhas subcodesT23.59Corrosion of first degree of multiple sites of wrist and handhas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

Instructional Notes

Code First
  • (T51-T65) to identify chemical and intent
Use Additional Code
  • external cause code to identify place (Y92)
General instructions are available for the parent sections:
View CH19 NotesView T20-T25 Notes

Clinical Hierarchy

BillableHas subcodes
CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
T20-T25Burns and corrosions of external body surface, specified by site (T20-T25)
T23Burn and corrosion of wrist and hand
T23.5Corrosion of first degree of wrist and handNot billable
T23.50Corrosion of first degree of hand, unspecified siteSubcodes
T23.51Corrosion of first degree of thumb (nail)Subcodes
T23.52Corrosion of first degree of single finger (nail) except thumbSubcodes
T23.53Corrosion of first degree of multiple fingers (nail), not including thumbSubcodes
T23.54Corrosion of first degree of multiple fingers (nail), including thumbSubcodes
T23.55Corrosion of first degree of palmSubcodes
T23.56Corrosion of first degree of back of handSubcodes
T23.57Corrosion of first degree of wristSubcodes
T23.59Corrosion of first degree of multiple sites of wrist and handSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to T23.5:

blockT20-T25
Burns and corrosions of external body surface, specified by site (T20-T25)
View context instructions
chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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