U.S. ICD-10-CM · FY 2027

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.

Code definition

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

Classification

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

More specific choices

Codes under O98

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

O98.0

Tuberculosis complicating pregnancy, childbirth and the puerperium

O98.1

Syphilis complicating pregnancy, childbirth and the puerperium

O98.2

Gonorrhea complicating pregnancy, childbirth and the puerperium

O98.3

Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium

O98.4

Viral hepatitis complicating pregnancy, childbirth and the puerperium

O98.5

Other viral diseases complicating pregnancy, childbirth and the puerperium

O98.6

Protozoal diseases complicating pregnancy, childbirth and the puerperium

O98.7

Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium

O98.8

Other maternal infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium

O98.9

Unspecified maternal infectious and parasitic disease complicating pregnancy, childbirth and the puerperium

Documentation details

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)

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

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).

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