2027 ICD-10-CM Diagnosis Code N98.8Other complications associated with artificial fertilization
ICD-10-CM Codes›N00–N99›N80-N98›N98
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
N98.8 is a billable ICD-10-CM diagnosis code for other complications associated with artificial fertilization. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 919 through 921. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 48 closely related codes. Coders also document this condition as stilbestrol-related vaginal adenosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative genitourinary system complication.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Stilbestrol-related vaginal adenosis
- Vaginal adenosis
- Venous thrombosis following assisted fertilization
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N98.8: its own notes plus those printed at Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may 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)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N98.8, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Assisted Reproductive Technology
Assisted reproductive technology (ART) is used to treat infertility. It includes fertility treatments that handle both eggs and sperm. It works by removing eggs from the ovaries. The eggs are then mixed with sperm to make embryos. The embryos are then put back in the parent's body.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N98.8 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N98.8Overview
What is the ICD-10 code for other complications associated with artificial fertilization?
The ICD-10-CM code for other complications associated with artificial fertilization is N98.8 (sometimes written as N988). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N98.8 (Complications associated with artificial fertilization) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other complications associated with artificial fertilization on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N98.8 group to?
When other complications associated with artificial fertilization is the principal diagnosis on an inpatient stay, it groups to MS-DRG 920, 919, 921, with relative weights from 0.6719 to 1.7624 depending on complications. Higher weights mean higher Medicare reimbursement.
Is N98.8 a CC or MCC?
CMS lists N98.8 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 48 closely related codes in its exclusion list.
What is the ICD-9 equivalent of N98.8?
Under the General Equivalence Mappings, other complications associated with artificial fertilization converts to ICD-9-CM 997.99 (surg compl-body syst NEC). The mapping is approximate, so confirm the match fits the documentation.
