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O98 ⚠ Non-billable

Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium

Code
O98
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Includes
  • the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care
Excludes2 — not included here, but may code together
  • 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)
Use additional code
  • code (Chapter 1), to identify specific infectious or parasitic disease

Frequently asked questions

What is ICD-10 code O98?
ICD-10-CM code O98 represents Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium. It is a non-billable header code requiring a more specific subcategory in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O98 billable?
No. O98 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is O98 in?
O98 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.

Related codes in the O98 category

O98.0 Tuberculosis complicating pregnancy, childbirth and the puerperium Non-billable O98.1 Syphilis complicating pregnancy, childbirth and the puerperium Non-billable O98.2 Gonorrhea complicating pregnancy, childbirth and the puerperium Non-billable O98.3 Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium Non-billable O98.4 Viral hepatitis complicating pregnancy, childbirth and the puerperium Non-billable O98.5 Other viral diseases complicating pregnancy, childbirth and the puerperium Non-billable O98.6 Protozoal diseases complicating pregnancy, childbirth and the puerperium Non-billable O98.01 Tuberculosis complicating pregnancy Non-billable

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