T23.632D

Corrosion of second degree of multiple left fingers (nail), not including thumb, subsequent encounter

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from T23.6Corrosion of second degree of wrist and hand
Use additional

external cause code to identify place (Y92)

Code first

(T51-T65) to identify chemical and intent

Inherited from T23Burn and corrosion of wrist and hand
7th character

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

Valid 7th characters and their meanings
CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela
Inherited from T20-T25Burns and corrosions of external body surface, specified by site
Includes

burns and corrosions of first degree [erythema] burns and corrosions of second degree [blisters][epidermal loss] burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]

Use additional

code from category T31 or T32 to identify extent of body surface involved

Inherited from chapter 19Injury, poisoning and certain other consequences of external causes
Excludes 2

birth trauma (P10-P15) obstetric trauma (O70-O71)

Use additional

code to identify any retained foreign body, if applicable (Z18.-)

Note

Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes. (T07-T88) Injury, poisoning and certain other consequences of external causes (T07-T88) (T20-T32) Burns and corrosions (T20-T32) Includes: burns (thermal) from electrical heating appliances burns (thermal) from electricity burns (thermal) from flame burns (thermal) from friction burns (thermal) from hot air and hot gases burns (thermal) from hot objects burns (thermal) from lightning burns (thermal) from radiation chemical burn [corrosion] (external) (internal) scalds Excludes2: erythema [dermatitis] ab igne (L59.0) radiation-related disorders of the skin and subcutaneous tissue (L55-L59) sunburn (L55.-)

Official Guidelines for T23.632D

FY 2026 ›
I.C.19Chapter-specific guidanceChapter 19: Injury, poisoning, and certain other consequences of external causes (S00-T88)

Subsections

Sections that reference T23.632D

Sections whose FY 2026 text names T23.632D, its T23 category, or a range containing it — the chapter guidance above is the authoritative source.