Excludes1 pair

Z30.8 vs Z31.4-

Z30.8 and Z31.4 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on Z31.4
postvasectomy sperm count (Z30.8)
Z30.8

Encounter for other contraceptive management

Billable
Chapter 21
Factors influencing health status and contact with health services
Section
Z30-Z39
Use when the record says
  • Encounter for postvasectomy sperm count
  • Encounter for routine examination for contraceptive maintenance
Indexed under
  • Examination › contraceptive (drug) maintenance (routine)
  • Sperm counts › postvasectomy
  • Contraception, contraceptive › maintenance › examination
  • Contraception, contraceptive › management › specified NEC
  • Examination › gynecological › for contraceptive maintenance
Z31.4

Encounter for procreative investigation and testing

Not billable
Chapter 21
Factors influencing health status and contact with health services
Section
Z30-Z39

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027