MCMedicalCodingSoftware
W93

W93: Exposure to excessive cold of man-made origin

Non-billable headerICD-10-CM

W93 is a non-billable header ICD-10-CM code for exposure to excessive cold of man-made origin. 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 W93

A
initial encounter
D
subsequent encounter
S
sequela

Other codes that can never be billed with W93

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

  • X31Exposure to excessive natural cold
  • X31.XXXAExposure to excessive natural cold, initial encounter
  • X31.XXXDExposure to excessive natural cold, subsequent encounter
  • X31.XXXSExposure to excessive natural cold, sequela

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead W93

4 child codes. Green means billable.

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.