Is Z11.5 a billable ICD-10-CM code?

No. Z11.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Z11.5 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 Z11.5?

Z11.5 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 Z11.5 (Z11) and apply to it just the same.

Z11.5

Z11.5 — Encounter for screening for other viral diseases

Non-billable headerICD-10-CM

Z11.5 is a non-billable header ICD-10-CM code for encounter for screening for other viral diseases. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

encounter for screening for viral intestinal disease (Z11.0)

Excludes1 inherited from the categories above Z11.5

These are not written on Z11.5, but they bind it: a note on a category applies to every code beneath it. Billing Z11.5 with anything listed here is a denial.

Written on Z11 — Encounter for screening for infectious and parasitic diseases

encounter for diagnostic examination-code to sign or symptom

Risk adjustment

Z11.5 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.

Code history

Z11.5 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead Z11.5

3 child codes. Green means billable.

Related codes at this level

Codes that share Z11. If Z11.5 is not quite right, the correct code is usually one of these.

Questions about Z11.5

Is Z11.5 a billable ICD-10-CM code?: No. Z11.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Z11.5 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 Z11.5?: Z11.5 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 Z11.5 (Z11) and apply to it just the same.