Is Z45.81 a billable ICD-10-CM code?

No. Z45.81 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Z45.81 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Encounters for other specific health care (Z40-Z53).

What cannot be coded together with Z45.81?

Z45.81 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

Z45.81

Z45.81 — Encounter for adjustment or removal of breast implant

Non-billable headerICD-10-CM

Z45.81 is a non-billable header ICD-10-CM code for encounter for adjustment or removal of breast implant. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

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

complications of breast implant (T85.4-)
encounter for initial breast implant insertion for cosmetic breast augmentation (Z41.1)
encounter for breast reconstruction following mastectomy (Z42.1)

Inclusion terms

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

Encounter for elective implant exchange (different material) (different size)
Encounter for removal of tissue expander with or without synchronous insertion of permanent implant

Other codes that can never be billed with Z45.81

These codes carry an Excludes1 note pointing at Z45.81. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z45.81 alone.

Z44.3Encounter for fitting and adjustment of external breast prosthesis

Risk adjustment

Z45.81 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.

How Z45.81 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 Z45.81.

Encounter›breast implant exchange(different material) (different size)
Removal›breast implant
Encounter›adjustment and management›breast implant
Encounter›removal›breast implant
Admission›adjustment›breast›implant
Encounter›removal›breast implant›tissue expander(with or without synchronous insertion of permanent implant)

Code to one of these instead Z45.81

3 child codes. Green means billable.

Related codes at this level

Codes that share Z45.8. If Z45.81 is not quite right, the correct code is usually one of these.

Questions about Z45.81

Is Z45.81 a billable ICD-10-CM code?: No. Z45.81 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Z45.81 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Encounters for other specific health care (Z40-Z53).
What cannot be coded together with Z45.81?: Z45.81 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.