All ICD10 Codes

W99

Billable
ChapterV00–Y99
Rankcategory
Official Description

Exposure to other man-made environmental factors

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 20: External Causes of Morbidity (V00-Y99).

W85-W99 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • 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)

Clinical Hierarchy

BillableHas subcodes
CH20External causes of morbidity (V00-Y99)
W85-W99Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)
W99Exposure to other man-made environmental factorsBillable
W99.XXXAExposure to other man-made environmental factors, initial encounterBillable
W99.XXXDExposure to other man-made environmental factors, subsequent encounterBillable
W99.XXXSExposure to other man-made environmental factors, sequelaBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to W99:

blockW85-W99
Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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