Is Z01.82 a billable ICD-10-CM code?

Yes. Z01.82 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Z01.82 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services for examinations (Z00-Z13).

What cannot be coded together with Z01.82?

Z01.82 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Z01.82 (Z01) and apply to it just the same.

Z01.82

Z01.82 — Encounter for allergy testing

Billable / specific codeICD-10-CMPOA exempt

Z01.82 is a billable, specific ICD-10-CM code for encounter for allergy testing. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

encounter for antibody response examination (Z01.84)

Excludes1 inherited from the categories above Z01.82

These are not written on Z01.82, but they bind it: a note on a category applies to every code beneath it. Billing Z01.82 with anything listed here is a denial.

Written on Z01 — Encounter for other special examination without complaint, suspected or reported diagnosis

encounter for examination for administrative purposes (Z02.-)
encounter for examination for suspected conditions, proven not to exist (Z03.-)
encounter for laboratory, radiologic and imaging examinations for sign(s) and symptom(s) - code to the sign(s) or symptom(s)

Excludes2 inherited from the categories above Z01.82

Also inherited, and the opposite of Excludes1: these conditions are not part of Z01.82, but a patient can have both, so you may code both.

Written on Z01 — Encounter for other special examination without complaint, suspected or reported diagnosis

encounter for laboratory and radiologic examinations as a component of general medical examinations (Z00.0-)
screening examinations (Z11-Z13)

Other codes that can never be billed with Z01.82

These codes carry an Excludes1 note pointing at Z01.82. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z01.82 alone.

Z01.84Encounter for antibody response examination

Risk adjustment

Z01.82 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

Z01.82 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56494Billing and Coding: Cardiovascular Nuclear Medicine
A56505Billing and Coding: Transesophageal Echocardiography (TEE)
A56809Billing and Coding: Transesophageal Echocardiography (TEE)
A57306Billing and Coding: Transthoracic Echocardiography (TTE)

How Z01.82 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 Z01.82.

Examination›allergy
Examination›skin(hypersensitivity)
Admission›sensitivity test›allergy NEC
Test, tests, testing›skin, diagnostic›allergy

Code history

Z01.82 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 Z01.8. If Z01.82 is not quite right, the correct code is usually one of these.

Questions about Z01.82

Is Z01.82 a billable ICD-10-CM code?: Yes. Z01.82 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z01.82 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services for examinations (Z00-Z13).
What cannot be coded together with Z01.82?: Z01.82 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Z01.82 (Z01) and apply to it just the same.