Z88.0 Allergy status to penicillin

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Z88 Allergy status to drugs, medicaments and biological substances

Excludes2 (not included here)

• Allergy status, other than to drugs and biological substances (Z91.0-)

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V14.0 Personal history of allergy to penicillin

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z88.0

Back-references to Z88

• Code Also: Z87.892 Personal history of anaphylaxis ("allergy status to drugs, medicaments and biological substances (Z88.-)")
• Type 2 Excludes: Z91.0 Allergy status, other than to drugs and biological substances ("Allergy status to drugs, medicaments, and biological substances (Z88.-)")

Diagnosis Index entries for Z88.0

• History › personal (of) › allergy (to) › penicillin

Nearby codes

• Z88 Allergy status to drugs, medicaments and biological substances
• Z88.0 Allergy status to penicillin (this code)
• Z88.1 Allergy status to other antibiotic agents
• Z88.2 Allergy status to sulfonamides
• Z88.3 Allergy status to other anti-infective agents
• Z88.4 Allergy status to anesthetic agent
• Z88.5 Allergy status to narcotic agent