T67
ICD-10Non-billable categoryEffects of heat and light
Official ICD-10-CM descriptor (FY2026)
Effects of heat and light
T67 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- erythema [dermatitis] ab igne (L59.0)
- malignant hyperpyrexia due to anesthesia (T88.3)
- radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- burns (T20-T31)
- sunburn (L55.-)
- sweat disorder due to heat (L74-L75)
7th character
- The appropriate 7th character is to be added to each code from category T67
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
More specific codes under T67
- T67.0Heatstroke and sunstrokecategory
- T67.1Heat syncopecategory
- T67.2Heat crampcategory
- T67.3Heat exhaustion, anhydroticcategory
- T67.4Heat exhaustion due to salt depletioncategory
- T67.5Heat exhaustion, unspecifiedcategory
- T67.6Heat fatigue, transientcategory
- T67.7Heat edemacategory
- T67.8Other effects of heat and lightcategory
- T67.9Effect of heat and light, unspecifiedcategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.