Is Z91.040 a billable ICD-10-CM code?

Yes. Z91.040 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Z91.040 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).

Z91.040

Z91.040 — Latex allergy status

Billable / specific codeICD-10-CMPOA exempt

Z91.040 is a billable, specific ICD-10-CM code for latex allergy status. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Latex sensitivity status

Excludes2 inherited from the categories above Z91.040

Also inherited, and the opposite of Excludes1: these conditions are not part of Z91.040, but a patient can have both, so you may code both.

Written on Z91.0 — Allergy status, other than to drugs and biological substances

Allergy status to drugs, medicaments, and biological substances (Z88.-)

Written on Z91 — Personal risk factors, not elsewhere classified

contact with and (suspected) exposures hazardous to health (Z77.-)
exposure to pollution and other problems related to physical environment (Z77.1-)
female genital mutilation status (N90.81-)
occupational exposure to risk factors (Z57.-)
personal history of physical injury and trauma (Z87.81, Z87.82-)

Risk adjustment

Z91.040 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

Z91.040 is named in 12 Medicare coverage policies — 12 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52448Billing and Coding: Omalizumab and biosimilar, OMLYCLO® (omalizumab-igec)
A57473Billing and Coding: Allergy Testing
A60360Billing and Coding: Allergy Diagnostic Testing
A60361Billing and Coding: Allergy Diagnostic Testing

How Z91.040 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z91.040.

Sensitive, sensitivity›latex
History›personal›allergy›latex

Code history

Z91.040 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share Z91.04. If Z91.040 is not quite right, the correct code is usually one of these.

Questions about Z91.040

Is Z91.040 a billable ICD-10-CM code?: Yes. Z91.040 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z91.040 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).