Z31.42 — Aftercare following sterilization reversal
Z31.42 is a billable, specific ICD-10-CM code for aftercare following sterilization reversal. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Sperm count following sterilization reversal
Excludes1 inherited from the categories above Z31.42
These are not written on Z31.42, but they bind it: a note on a category applies to every code beneath it. Billing Z31.42 with anything listed here is a denial.
Excludes2 inherited from the categories above Z31.42
Also inherited, and the opposite of Excludes1: these conditions are not part of Z31.42, but a patient can have both, so you may code both.
Other codes that can never be billed with Z31.42
These codes carry an Excludes1 note pointing at Z31.42. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z31.42 alone.
Risk adjustment
Z31.42 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 Z31.42 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 Z31.42.
- Tuboplasty, after previous sterilization›aftercare
- Vasoplasty, after previous sterilization›aftercare
- Admission›poststerilization›aftercare
- Admission›restoration of organ continuity›aftercare
- Admission›tuboplasty following previous sterilization›aftercare
- Admission›vasoplasty following previous sterilization›aftercare
- Restoration›organ continuity from previous sterilization›aftercare
- Sperm counts›postvasectomy›reversal
Code history
Z31.42 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 Z31.4. If Z31.42 is not quite right, the correct code is usually one of these.
Questions about Z31.42
- Is Z31.42 a billable ICD-10-CM code?
- Yes. Z31.42 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z31.42 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).
- What cannot be coded together with Z31.42?
- Z31.42 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 Z31.42 (Z31.4) and apply to it just the same.