2026 ICD-10-CM Diagnosis Code O98Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

ICD-10-CM Codes›O00-O9A›O94-O9A›O98

ICD-10-CM O98
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O98 is a non-billable ICD-10-CM category code for maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O98.011, O98.012, O98.013, and O98.019.

Code Identity

ICD-10-CM Code
O98
Billable Status
No — Non-Billable Category
Code Describes
Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
Chapter
O94-O9A
Other obstetric conditions, not elsewhere classified

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO94-O9AOther obstetric conditions, not elsewhere classified
CategoryO98Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
This CodeO98Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Specific Coding for Matern infec/parastc dis classd elsw but compl preg/chldbrthOverview

Non-specific codes like O98 require more characters. Use one of these billable codes instead:

  • O98.0 for Tuberculosis complicating pregnancy, childbirth and the puerperium

  • O98.01 for Tuberculosis complicating pregnancy

  • Use O98.02 for Tuberculosis complicating childbirth

  • Use O98.03 for Tuberculosis complicating the puerperium

  • O98.1 for Syphilis complicating pregnancy, childbirth and the puerperium

  • O98.11 for Syphilis complicating pregnancy

  • Use O98.12 for Syphilis complicating childbirth

  • Use O98.13 for Syphilis complicating the puerperium

  • O98.2 for Gonorrhea complicating pregnancy, childbirth and the puerperium

  • O98.21 for Gonorrhea complicating pregnancy

  • Use O98.22 for Gonorrhea complicating childbirth

  • Use O98.23 for Gonorrhea complicating the puerperium

  • O98.3 for Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium

  • O98.31 for Other infections with a predominantly sexual mode of transmission complicating pregnancy

  • Use O98.32 for Other infections with a predominantly sexual mode of transmission complicating childbirth

  • Use O98.33 for Other infections with a predominantly sexual mode of transmission complicating the puerperium

  • O98.4 for Viral hepatitis complicating pregnancy, childbirth and the puerperium

  • O98.41 for Viral hepatitis complicating pregnancy

  • Use O98.42 for Viral hepatitis complicating childbirth

  • Use O98.43 for Viral hepatitis complicating the puerperium

  • O98.5 for Other viral diseases complicating pregnancy, childbirth and the puerperium

  • O98.51 for Other viral diseases complicating pregnancy

  • Use O98.52 for Other viral diseases complicating childbirth

  • Use O98.53 for Other viral diseases complicating the puerperium

  • O98.6 for Protozoal diseases complicating pregnancy, childbirth and the puerperium

  • O98.61 for Protozoal diseases complicating pregnancy

  • Use O98.62 for Protozoal diseases complicating childbirth

  • Use O98.63 for Protozoal diseases complicating the puerperium

  • O98.7 for Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium

  • O98.71 for Human immunodeficiency virus [HIV] disease complicating pregnancy

  • Use O98.72 for Human immunodeficiency virus [HIV] disease complicating childbirth

  • Use O98.73 for Human immunodeficiency virus [HIV] disease complicating the puerperium

  • O98.8 for Other maternal infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium

  • O98.81 for Other maternal infectious and parasitic diseases complicating pregnancy

  • Use O98.82 for Other maternal infectious and parasitic diseases complicating childbirth

  • Use O98.83 for Other maternal infectious and parasitic diseases complicating the puerperium

  • O98.9 for Unspecified maternal infectious and parasitic disease complicating pregnancy, childbirth and the puerperium

  • O98.91 for Unspecified maternal infectious and parasitic disease complicating pregnancy

  • Use O98.92 for Unspecified maternal infectious and parasitic disease complicating childbirth

  • Use O98.93 for Unspecified maternal infectious and parasitic disease complicating the puerperium

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care

Use Additional Code

  • code (Chapter 1), to identify specific infectious or parasitic disease

Type 2 Excludes

  • herpes gestationis O26.4
  • infectious carrier state O99.82 O99.83
  • obstetrical tetanus A34
  • puerperal infection O86
  • puerperal sepsis O85
  • when the reason for maternal care is that the disease is known or suspected to have affected the fetus O35 O36

Patient EducationClinical

Childbirth Problems

Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O98Overview

Is O98 a billable code?

No. This is a category header that groups the codes for maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium, and headers cannot be submitted on claims. Claims for maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium need a more specific code from this category, such as O98.011, O98.012, and O98.013.