ICD-10 · PDGM grouping
Z88 Allergy status to drugs, medicaments and biological substances
All 10 codes in the Z88 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.
Codes in family
10
Can lead a claim
0
Cannot lead a claim
10
What CMS assigns to Z88
None of the 10 codes is assigned a clinical group. None of the 10 is assigned a comorbidity subgroup. None can lead a claim.
Every code in Z88
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 |
|---|---|---|---|---|
| Z88.0 | Allergy status to penicillin | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.1 | Allergy status to other antibiotic agents | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.2 | Allergy status to sulfonamides | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.3 | Allergy status to other anti-infective agents | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.4 | Allergy status to anesthetic agent | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.5 | Allergy status to narcotic agent | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.6 | Allergy status to analgesic agent | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.7 | Allergy status to serum and vaccine | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.8 | Allergy status to other drugs, medicaments and biological substancesCMS: Allergy status to other drug/meds/biol subst | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z88.9 | Allergy status to unspecified drugs, medicaments and biological substancesCMS: Allergy status to unspecified drug/meds/biol subst | 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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