Z57.6 — Occupational exposure to extreme temperature

Billable

Is Z57.6 billable?

Yes — Z57.6 is billable for FY2027. Z57.6 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z57.6 may be submitted for encounters from October 1, 2026 through September 30, 2027.

Z57.6 at a glance

Code	Z57.6
Description	Occupational exposure to extreme temperature
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

What Medicare edits apply to Z57.6?

The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z57.6 directly.

Cannot be a principal diagnosis — MCE edit 9

CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.

Which MS-DRGs does Z57.6 group to?

Z57.6 sits in MDC 23 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

951Other Factors Influencing Health Statusmedical

How is Z57.6 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to Z57.6. They show the wording a clinician may have documented, which often differs from the Tabular description.

Exposure › occupational › extreme temperature (to)

How is Z57.6 listed in the External Cause Index?

The External Cause of Injuries Index lists these routes under Z57, the nearest indexed parent of Z57.6. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.

Factors, supplemental › environmental-pollution-related condition- see

How long has Z57.6 existed?

Z57.6 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to Z57.6?

ICD-10 code for Exposure