AutoICD API

T24.5

Non-billable

Corrosion of first degree of lower limb, except ank/ft

Corrosion of first degree of lower limb, except ankle and foot

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

T20-T25

Parent Code

T24

Child Codes

5

Coding Notes

Includes

Conditions included under this code

  • 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]

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

  • burn and corrosion of ankle and foot (T25.-)
  • burn and corrosion of hip region (T21.-)

Code First

The underlying condition must be sequenced before this code

  • (T51-T65) to identify chemical and intent

Use Additional Code

Additional codes that should follow this code

  • code to identify any retained foreign body, if applicable (Z18.-)
  • code from category T31 or T32 to identify extent of body surface involved
  • external cause code to identify place (Y92)

Child Codes (5)

T24.50

Corros first degree of unsp site lower limb, except ank/ft

T24.51

Corrosion of first degree of thigh

T24.52

Corrosion of first degree of knee

T24.53

Corrosion of first degree of lower leg

T24.59

Corros first deg mult sites of lower limb, except ank/ft

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code T24.5?

ICD-10-CM code T24.5 represents "Corrosion of first degree of lower limb, except ankle and foot". It is a non-billable header code — use a more specific child code for billing purposes.

Is T24.5 a billable code?

No, T24.5 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 5 child codes under T24.5.

What chapter is T24.5 in?

T24.5 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).

What codes cannot be used with T24.5?

T24.5 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71).

What are the subcategories under T24.5?

T24.5 has 5 child codes, including: T24.50 (Corros first degree of unsp site lower limb, except ank/ft), T24.51 (Corrosion of first degree of thigh), T24.52 (Corrosion of first degree of knee), T24.53 (Corrosion of first degree of lower leg), and 1 more.

Are additional codes required with T24.5?

Yes, when using T24.5 you should also code: code to identify any retained foreign body, if applicable (Z18.-); code from category T31 or T32 to identify extent of body surface involved; external cause code to identify place (Y92).

What are the UMLS CUIs for T24.5?

T24.5 is linked to 1 UMLS Concept Unique Identifier: C2872964. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Try FreeView API Docs

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.