ICD-10-CM W90: Exposure to other nonionizing radiation

ICD-10-CM Diagnosis Code (2025)

Official Description for W90

Exposure to other nonionizing radiation

Coding Notes & Guidelines for W90

Excludes2: Not Included Here

exposure to sunlight (X32)

7th Character Guidance

The appropriate 7th character is to be added to each code from category W90

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Child Codes (More Specific Codes for W90):

W90.0 - Exposure to radiofrequency W90.1 - Exposure to infrared radiation W90.2 - Exposure to laser radiation W90.8 - Exposure to other nonionizing radiation

About ICD-10-CM Code W90 (Exposure to other nonionizing radiation)

ICD-10-CM code W90 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM W90 became effective on October 1, 2024.

This page provides detailed information about W90 - Exposure to other nonionizing radiation. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Exposure to other nonionizing radiation.