N98.1
Hyperstimulation of ovaries
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 8 never code together
N00-N99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 2
N98.1code
Inclusion terms
- Hyperstimulation of ovaries NOS
- Hyperstimulation of ovaries associated with induced ovulation
Index entries leading here 2
Alongside this code 5 same parent — N98
N98.0 Infection associated with artificial insemination N98.2 Comp of attempt introduce of fertilized ovum fol in vitro N98.3 Comp of attempted introduction of embryo in embryo transfer N98.8 Other complications associated with artificial fertilization N98.9 Complication associated with artificial fertilization, unsp
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.