ICD-10-CM 2027 diagnosis code
Z77.018Contact with and (suspected) exposure to other hazardous metals
Z77.018 is a valid, billable ICD-10-CM code for contact with and (suspected) exposure to other hazardous metals. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Contact w and (suspected) exposure to oth hazardous metals
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z77.018
Z77.018 is the ICD-10-CM diagnosis code for contact with and (suspected) exposure to other hazardous metals. It belongs to category Z77 (other contact with and (suspected) exposures hazardous to health), block Z77-Z99 (persons with potential health hazards related to family and personal history and certain conditions influencing health status) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within Z77.01, choose Z77.018 (other hazardous metals) only when documentation doesn't support a more specific option: arsenic (Z77.010), lead (Z77.011), uranium (Z77.012) and gadolinium (Z77.013).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as V87.09 (contact with and (suspected) exposure to other hazardous metals).
Coding notes
- Contact with and (suspected) exposure to chromium compounds
- Contact with and (suspected) exposure to nickel dust
Notes that apply from higher levels
Instructions written at a parent level also apply to Z77.018.
› From Z77 Other contact with and (suspected) exposures hazardous to health
- contact with and (suspected) exposures to potential hazards to health
- contact with and (suspected) exposure to communicable diseases (Z20.-)
- exposure to (parental) (environmental) tobacco smoke in the perinatal period (P96.81)
- newborn affected by noxious substances transmitted via placenta or breast milk (P04.-)
- occupational exposure to risk factors (Z57.-)
- retained foreign body (Z18.-)
- retained foreign body fully removed (Z87.821)
- toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
Broader instructions also apply from Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status and Chapter 21: Factors influencing health status and contact with health services.
Alphabetic index entries
6 entriesTerms in the official ICD-10-CM index that lead to Z77.018.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services
ICD-9-CM equivalent
Converter →- V87.09Contact with and (suspected) exposure to other hazardous metalsapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Z77.018
Is Z77.018 billable?
- Yes. Z77.018 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z77.018 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z77.018 a CC or MCC?
- No. Z77.018 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z77.018 group to?
- Z77.018 is used in the MS-DRG v44.0 logic for MS-DRG 951 (Other Factors Influencing Health Status). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.