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T67

Non-billable

Effects of heat and light

T67 is the ICD-10-CM code for Effects of heat and light. It is a non-billable category code — use a more specific child code such as T67.0 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Subcodes
10
Edition
FY2026

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

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What this means — in plain language

MedlinePlus · NIH

Your body normally cools itself by sweating. During hot weather, especially when it is very humid, sweating just isn't enough to cool you off. Your body temperature can rise to dangerous levels and you can develop a heat illness. Most heat illnesses happen when you stay out in the heat too long. Exercising and working outside in high heat can also lead to heat illness. Older adults, young children, and those who are…

Read more about Heat Illness at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •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

  • •burns (T20-T31)
  • •sunburn (L55.-)
  • •sweat disorder due to heat (L74-L75)

Conditions mapped to this code

MedlinePlus · NIH
FaintingHeat Illness

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Benefits & assistance programs

Federal & state

Assistance programs whose eligibility maps to this condition's category. Informational only — eligibility is determined by the administering agency.

Frequently asked questions

What is ICD-10 code T67?
T67 is the ICD-10-CM code for "Effects of heat and light". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T67 a billable code?
No — T67 is a non-billable header code. Use a more specific child code (such as T67.0) for billing.
What are the subcodes of T67?
T67 has 10 more specific child codes, including T67.0, T67.1, T67.2.
What is excluded from T67?
Excludes1 (not coded here): erythema [dermatitis] ab igne (L59.0); malignant hyperpyrexia due to anesthesia (T88.3); radiation-related disorders of the skin and subcutaneous tissue (L55-L59).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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