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T67.4

T67.4: Heat exhaustion due to salt depletion

Non-billable headerICD-10-CM

T67.4 is a non-billable header ICD-10-CM code for heat exhaustion due to salt depletion. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T67

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Heat prostration due to salt (and water) depletion

Excludes1 inherited from the categories above T67.4

A category’s note binds every code beneath it.

Written on T67: Effects of heat and light

  • 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 inherited from the categories above T67.4

Not part of this code, but both may be coded when both are present.

Written on T67: Effects of heat and light

Other codes that can never be billed with T67.4

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • R53.8Other malaise and fatigue
  • T67.3Heat exhaustion, anhydrotic
  • T67.3XXAHeat exhaustion, anhydrotic, initial encounter
  • T67.3XXDHeat exhaustion, anhydrotic, subsequent encounter
  • T67.3XXSHeat exhaustion, anhydrotic, sequela

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Depletion›salt or sodium›causing heat exhaustion or prostration
  • Exhaustion, exhaustive›heat›due to›salt depletion
  • Heat›exhaustion›due to›salt depletion(and water)
  • Prostration›heat›due to›salt depletion(and water)
  • Heat›exhaustion›due to›water depletion›with salt depletion
  • Syndrome›salt›depletion›due to heat NEC›causing heat exhaustion or prostration

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T67.4

3 child codes. Green means billable.

Other codes under T67

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.