T67.3 is the authoritative medical code for Heat exhaustion, anhydrotic. This classification is used in medical billing and clinical recording to specify the clinical criteria for heat exhaustion, anhydrotic (ICD-10-CM T67.3), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Heat exhaustion, anhydrotic is a non-billable ICD-10-CM category code T67.3. A more specific billable subcode must be selected for claims submission. Inclusion terms: Heat prostration due to water depletion. Excludes1 (not coded here): heat exhaustion due to salt depletion T67.4; 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. Code also: , if applicable, place of occurrence, such as:; highway rest stop Y92.523; school private public state as the place of occurrence of the external cause Y92.21-; service areas as the place of occurrence of the external cause Y92.52-; single-family non-institutional private house as the place of occurrence of the external cause Y92.01-; transport vehicle as the place of occurrence of the external cause Y92.81-. 7th character: The appropriate 7th character is to be added to each code from category T67.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T67.3 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Heat prostration due to water depletion
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- heat exhaustion due to salt depletion T67.4
- 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
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns T20-T31
- sunburn L55.-
- sweat disorder due to heat L74-L75
Code Also
Additional codes that may be required to fully describe the encounter.
- , if applicable, place of occurrence, such as:
- highway rest stop Y92.523
- school private public state as the place of occurrence of the external cause Y92.21-
- service areas as the place of occurrence of the external cause Y92.52-
- single-family non-institutional private house as the place of occurrence of the external cause Y92.01-
- transport vehicle as the place of occurrence of the external cause Y92.81-
Frequently Asked Questions (FAQ) & Clinical Guidance
Can T67.3 be billed directly?
No. T67.3 (Heat exhaustion, anhydrotic) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does T67.3 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T67.
What can't be coded together with T67.3?
Per Excludes1 instructions, T67.3 must not be reported with: heat exhaustion due to salt depletion (T67.4); erythema [dermatitis] ab igne (L59.0); malignant hyperpyrexia due to anesthesia (T88.3); radiation-related disorders of the skin and subcutaneous tissue (L55-L59).
Can T67.3 be reported alongside related conditions?
Per Excludes2 instructions, T67.3 and the following may both be reported when both are present: burns (T20-T31); sunburn (L55.-); sweat disorder due to heat (L74-L75).
What conditions are included under T67.3?
Heat exhaustion, anhydrotic includes: Heat prostration due to water depletion.
Codes in This Family (3)
Official ICD-10-CM classifications in the same code family as T67.3, with their registry titles.
- T67.3XXA — Heat exhaustion, anhydrotic, initial encounter
- T67.3XXD — Heat exhaustion, anhydrotic, subsequent encounter
- T67.3XXS — Heat exhaustion, anhydrotic, sequela
Indexed Clinical Terms (5)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Exhaustion, exhaustive (physical NEC), heat, due to, water depletion
- Heat (effects), exhaustion, anhydrotic
- Heat (effects), exhaustion, due to, water depletion
- Prostration, heat, anhydrotic
- Prostration, heat, due to, water depletion
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
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