ICDcodes.org
FY2027

N98.1 — Hyperstimulation of ovaries

BillableCC

Is N98.1 billable?

Yes — N98.1 is billable for FY2027. N98.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. N98.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.

N98.1 at a glance

CodeN98.1
DescriptionHyperstimulation of ovaries
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does N98.1 group to?

N98.1 sits in MDC 21 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 919Complications of Treatment with MCCmedical
  • 920Complications of Treatment with CCmedical
  • 921Complications of Treatment without CC/MCCmedical

As a secondary diagnosis, N98.1 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is N98.1 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to N98.1. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Hyperstimulation, ovaries (associated with induced ovulation)
  • Complication › artificial › fertilization or insemination › hyperstimulation of ovaries (s) (from) (of)

Inclusion terms

Alternative wording in documentation that is classified to N98.1.

  • Hyperstimulation of ovaries NOS
  • Hyperstimulation of ovaries associated with induced ovulation

Excludes2 — not included here — inherited from Chapter 14

The conditions below are not part of N98.1, but a patient may have both at the same time. When documentation supports it, N98.1 and the excluded code may both be reported.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

How long has N98.1 existed?

N98.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the N98 family? (5)