T23.23

⚠ Non-billable (Header)

Burn of second degree of multiple fingers (nail), not including thumb

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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📋 Code Instructions

inherited

T23.2

• external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

Child Codes (3)

T23.231Burn of second degree of multiple right fingers (nail), not including thumbHeader T23.232Burn of second degree of multiple left fingers (nail), not including thumbHeader T23.239Burn of second degree of unspecified multiple fingers (nail), not including thumbHeader

Clinical Description

ICD-10-CM code T23.23 represents burn of second degree of multiple fingers (nail), not including thumb. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 6-character code at the 5th level of specificity. There are 3 more specific child codes under T23.23.

Frequently Asked Questions

What is ICD-10 code T23.23?

ICD-10-CM code T23.23 is "Burn of second degree of multiple fingers (nail), not including thumb". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T23.23 a billable ICD-10 code?

No, T23.23 is a non-billable header code. A more specific child code must be used for billing.

Related Codes in T23.2

Other codes in the same category that may be relevant for differential coding:

T23.20Burn of second degree of hand, unspecified site T23.21Burn of second degree of thumb (nail)T23.22Burn of second degree of single finger (nail) except thumb T23.24Burn of second degree of multiple fingers (nail), including thumb T23.25Burn of second degree of palm T23.26Burn of second degree of back of hand T23.27Burn of second degree of wrist T23.29Burn of second degree of multiple sites of wrist and hand

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Code Information

CodeT23.23

BillableNo — Header code

ParentT23.2

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes10 rule(s)

Excludes20 note(s)

Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)