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T67.01

T67.01: Heatstroke and sunstroke

Non-billable headerICD-10-CM

T67.01 is a non-billable header ICD-10-CM code for heatstroke and sunstroke. 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 apoplexy
  • Heat pyrexia
  • Siriasis
  • Thermoplegia

Excludes1 inherited from the categories above T67.01

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 T67.01

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 T67.01

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

  • R53.8Other malaise and fatigue

Risk adjustment

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

Alphabetic index entries that lead here

  • Ictus solaris, solis
  • Insolation(sunstroke)
  • Siriasis
  • Sunstroke
  • Thermoplegia
  • Apoplexia, apoplexy, apoplectic›heat
  • Fever›heat(effects)
  • Fever›thermic
  • Heat›apoplexy
  • Heat›fever
  • Heat›hyperpyrexia
  • Heat›pyrexia

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T67.01

3 child codes. Green means billable.

Other codes under T67.0

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.