O98 ICD-10-CM Code: Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

O98

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

ICD-10-CM diagnosis code · United States clinical modification

Where O98 sits

  1. 1

    Chapter 15

    Pregnancy, childbirth and the puerperium (O00-O9A)

  2. 2

    Section

    Other obstetric conditions, not elsewhere classified (O94-O9A)

  3. 3

    Category O98

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

  4. 4

    Code O98

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

Codes under O98

O98 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Notes for this code

Inclusion terms

No inclusion terms are listed for O98.

Code first

No “code first” instruction is listed for O98.

Use additional code

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

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for O98.

Excludes2

Conditions not included here that may be reported separately when present.

  • 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)

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code O98 mean?

O98 is the FY 2027 U.S. ICD-10-CM code for “Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium.”

Is O98 a billable or specific ICD-10-CM code?

No. O98 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is O98 located in ICD-10-CM?

O98 is listed in Chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A), within Other obstetric conditions, not elsewhere classified (O94-O9A) (O94–O9A), under category O98, Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium.

What coding notes are listed for O98?

No inclusion terms are listed for O98 in this reference record. No code-first instruction is listed. Additional-code instructions: code (Chapter 1), to identify specific infectious or parasitic disease. No Excludes1 note is listed. Excludes2 notes: 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).