Z57.9
Billable codeOccupational exposure to unspecified risk factor
The ICD-10 code for occupational exposure to unspecified risk factor is Z57.9.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z57.0Occupational exposure to noise
- Z57.1Occupational exposure to radiation
- Z57.2Occupational exposure to dust
- Z57.3Occupational exposure to other air contaminantsnon-billable header
- Z57.4Occupational exposure to toxic agents in agriculture
- Z57.5Occupational exposure to toxic agents in other industries
- Z57.6Occupational exposure to extreme temperature
- Z57.7Occupational exposure to vibration
- Z57.8Occupational exposure to other risk factors
- Z57.9Occupational exposure to unspecified risk factor
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- V621Approximate match
Associated MS-DRGs
Z57.9 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.