Is Z31 a billable ICD-10-CM code?

No. Z31 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Z31 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services in circumstances related to reproduction (Z30-Z39).

Z31

Z31 — Encounter for procreative management

Non-billable headerICD-10-CM

Z31 is a non-billable header ICD-10-CM code for encounter for procreative management. 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.

complications associated with artificial fertilization (N98.-)
female infertility (N97.-)
male infertility (N46.-)

Other codes that can never be billed with Z31

These codes carry an Excludes1 note pointing at Z31. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z31 alone.

Z33.3Pregnant state, gestational carrier
Z71.83Encounter for nonprocreative genetic counseling
Z13.7Encounter for screening for genetic and chromosomal anomalies
Z30.8Encounter for other contraceptive management
Z48.816Encounter for surgical aftercare following surgery on the genitourinary system

Risk adjustment

Z31 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 to one of these instead Z31

7 child codes. Green means billable.

Questions about Z31

Is Z31 a billable ICD-10-CM code?: No. Z31 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Z31 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services in circumstances related to reproduction (Z30-Z39).