T67.9
⚠ Non-billable (Header)Effect of heat and light, unspecified
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.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • 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
inheritedRules inherited from parent codes.
- • burns (T20-T31)
- • sunburn (L55.-)
- • sweat disorder due to heat (L74-L75)
Child Codes (3)
Clinical Description
ICD-10-CM code T67.9 represents effect of heat and light, unspecified. 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 5-character code at the 4th level of specificity. There are 3 more specific child codes under T67.9. Coders should note that T67.9 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code T67.9?
ICD-10-CM code T67.9 is "Effect of heat and light, unspecified". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T67.9 a billable ICD-10 code?
No, T67.9 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with T67.9?
T67.9 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Can T67.9 be coded with other codes?
T67.9 has 3 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in T67
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)