AutoICD API

W90

Non-billable

Exposure to other nonionizing radiation

Exposure to other nonionizing radiation

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

W85-W99

Child Codes

4

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • exposure to:
  • failure in dosage of radiation or temperature during surgical and medical care (Y63.2-Y63.5)
  • lightning (T75.0-)
  • natural cold (X31)
  • natural heat (X30)
  • natural radiation NOS (X39)
  • radiological procedure and radiotherapy (Y84.2)
  • sunlight (X32)

Excludes 2

Conditions not included here, but the patient may have both

  • exposure to sunlight (X32)

7th Character Definitions

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Child Codes (4)

W90.0

Exposure to radiofrequency

W90.1

Exposure to infrared radiation

W90.2

Exposure to laser radiation

W90.8

Exposure to other nonionizing radiation

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code W90?

ICD-10-CM code W90 represents "Exposure to other nonionizing radiation". It is a non-billable header code — use a more specific child code for billing purposes.

Is W90 a billable code?

No, W90 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under W90.

What chapter is W90 in?

W90 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).

What codes cannot be used with W90?

W90 has Excludes1 notes indicating codes that cannot be used together with it, including: exposure to:; failure in dosage of radiation or temperature during surgical and medical care (Y63.2-Y63.5); lightning (T75.0-); and 5 more.

What are the subcategories under W90?

W90 has 4 child codes, including: W90.0 (Exposure to radiofrequency), W90.1 (Exposure to infrared radiation), W90.2 (Exposure to laser radiation), W90.8 (Exposure to other nonionizing radiation).

What are the UMLS CUIs for W90?

W90 is linked to 1 UMLS Concept Unique Identifier: C0479524. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Try FreeView API Docs

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.