ICD-10 · PDGM grouping
Z77 Other contact with and (suspected) exposures hazardous to health
All 31 codes in the Z77 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
31
Can lead a claim
0
Cannot lead a claim
31
What CMS assigns to Z77
None of the 31 codes is assigned a clinical group. None of the 31 is assigned a comorbidity subgroup. None can lead a claim.
Every code in Z77
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| Z77.0 Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicals | ||||
| Z77.01 Contact with and (suspected) exposure to hazardous metals | ||||
| Z77.010 | Contact with and (suspected) exposure to arsenic | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.011 | Contact with and (suspected) exposure to lead | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.012 | Contact with and (suspected) exposure to uranium | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.013 | Contact with and (suspected) exposure to gadolinium | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.018 | Contact with and (suspected) exposure to other hazardous metalsCMS: Contact w and (suspected) exposure to oth hazardous metals | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.02 Contact with and (suspected) exposure to hazardous aromatic compounds | ||||
| Z77.020 | Contact with and (suspected) exposure to aromatic amines | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.021 | Contact with and (suspected) exposure to benzene | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.028 | Contact with and (suspected) exposure to other hazardous aromatic compoundsCMS: Contact w and exposure to oth hazardous aromatic compounds | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.09 Contact with and (suspected) exposure to other hazardous, chiefly nonmedicinal, chemicals | ||||
| Z77.090 | Contact with and (suspected) exposure to asbestos | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.098 | Contact with and (suspected) exposure to other hazardous, chiefly nonmedicinal, chemicalsCMS: Contact w and expsr to oth hazard, chiefly nonmed, chemicals | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.1 Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment | ||||
| Z77.11 Contact with and (suspected) exposure to environmental pollution | ||||
| Z77.110 | Contact with and (suspected) exposure to air pollution | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.111 | Contact with and (suspected) exposure to water pollution | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.112 | Contact with and (suspected) exposure to soil pollution | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.118 | Contact with and (suspected) exposure to other environmental pollutionCMS: Contact w and (suspected) exposure to oth environ pollution | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.12 Contact with and (suspected) exposure to hazards in the physical environment | ||||
| Z77.120 | Contact with and (suspected) exposure to mold (toxic) | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.121 | Contact with and (suspected) exposure to harmful algae and algae toxinsCMS: Contact w and exposure to harmful algae and algae toxins | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.122 | Contact with and (suspected) exposure to noise | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.123 | Contact with and (suspected) exposure to radon and other naturally occurring radiationCMS: Cntct w & expsr to radon and other naturally occur radiation | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.128 | Contact with and (suspected) exposure to other hazards in the physical environmentCMS: Contact w and expsr to oth hazards in the physcl environment | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.2 Contact with and (suspected) exposure to other hazardous substances | ||||
| Z77.21 | Contact with and (suspected) exposure to potentially hazardous body fluidsCMS: Contact w and exposure to potentially hazardous body fluids | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.22 | Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)CMS: Cntct w and expsr to environ tobacco smoke (acute) (chronic) | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.29 | Contact with and (suspected) exposure to other hazardous substancesCMS: Contact with and exposure to other hazardous substances | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.3 Contact with and (suspected) exposure to war theater | ||||
| Z77.31 | Contact with and (suspected) exposure to Gulf War theater | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z77.32 | Contact with and (suspected) exposure to burn pits in war theaterCMS: Contact with and exposure to burn pits in war theater | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.33 | Contact with and (suspected) exposure to Agent Orange | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.39 | Contact with and (suspected) exposure to other war theater | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z77.4 Contact with and (suspected) exposure to blast overpressure | ||||
| Z77.40 | Contact with and (suspected) exposure to unspecified blast overpressureCMS: Contact with and exposure to unspecified blast overpressure | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.41 | Contact with and (suspected) exposure to low-level blast overpressureCMS: Contact with and exposure to low-level blast overpressure | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.42 | Contact with and (suspected) exposure to high-level blast overpressureCMS: Contact with and exposure to high-level blast overpressure | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.49 | Contact with and (suspected) exposure to other blast overpressureCMS: Contact with and exposure to other blast overpressure | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z77.9 | Other contact with and (suspected) exposures hazardous to healthCMS: Oth contact w and (suspected) exposures hazardous to health | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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