Burn and corrosion of lower limb, except ankle and foot
In Burns and corrosions of external body surface, specified by site (T20-T25), chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes
360 billable codes under T24: 30 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Also applies, from Burns and corrosions of external body surface, specified by site (T20-T25)
These notes sit on T20-T25 and apply to every code under it, including T24.
Includes: conditions that are coded here
- 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]
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
- Section I.C.19.d Coding of Burns and Corrosions (page 80), covers T24
Sequence the highest degree burn first and code each site separately, using the highest degree for one site. Code non-healing burns as acute, add codes for infection, and add an external cause code for source, intent, and place.
Other Chapter 19 topics:
- Application of 7th Characters in Chapter 19 (page 77)
- Coding of Injuries (page 78)
- Coding of Traumatic Fractures (page 79)
- Adverse Effects, Poisoning, Underdosing and Toxic Effects (page 82)
- Adult and child abuse, neglect and other maltreatment (page 85)
- Complications of care (page 85)
Codes under T24
T24 can't be used on a claim. Pick a billable code below; grey headings group them.
- T24.0Burn of unspecified degree of lower limb, except ankle and foot
- T24.1Burn of first degree of lower limb, except ankle and foot
- T24.2Burn of second degree of lower limb, except ankle and foot
- T24.3Burn of third degree of lower limb, except ankle and foot
- T24.4Corrosion of unspecified degree of lower limb, except ankle and foot
- T24.5Corrosion of first degree of lower limb, except ankle and foot
- T24.6Corrosion of second degree of lower limb, except ankle and foot
- T24.7Corrosion of third degree of lower limb, except ankle and foot
T24 MS-DRGs
As the principal diagnosis, the billable codes under T24 group to MS-DRG 604, 605, 949, 950, or 935 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 604 Trauma to the Skin, Subcutaneous Tissue and Breast with MCC (120 of 360 codes)
- DRG 605 Trauma to the Skin, Subcutaneous Tissue and Breast without MCC (120 of 360 codes)
- DRG 949 Aftercare with CC/MCC (120 of 360 codes)
- DRG 950 Aftercare without CC/MCC (120 of 360 codes)
- DRG 935 Non-Extensive Burns (90 of 360 codes)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Burns
A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires and flammable liquids and gases are the most common causes of burns. Another kind is an inhalation injury, caused by breathing smoke.
Read more about burns on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.