Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

Tabular directives: 1 inclusion term · 6 Excludes2 · 1 use-additional code

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43, Appendix B.

MS-DRG 998 — PRINCIPAL DIAGNOSIS INVALID AS DISCHARGE DIAGNOSIS (MDC 14)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for O98.32 in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on O98.32 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

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

Source: inherited from O98

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

herpes gestationis (O26.4-) Compare O98.32 vs O26.4 →
infectious carrier state (O99.82-, O99.83-) Compare O98.32 vs O99.82 →
obstetrical tetanus (A34) Compare O98.32 vs A34 →
puerperal infection (O86.-) Compare O98.32 vs O86 →
puerperal sepsis (O85) Compare O98.32 vs O85 →
when the reason for maternal care is that the disease is known or suspected to have affected the fetus (O35-O36) Compare O98.32 vs O35 →

Source: inherited from O98

Use Additional Code

Supplementary codes the tabular list directs you to add.

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

Source: inherited from O98

Coder workflow for O98.32

MedCoder structured workflow — derived from this code’s own official record

Before you code O98.32

“Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on O98.32; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).
See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →
O98.32’s title joins a condition with an associated condition or complication. Confirm each component is documented. Where the classification presumes the link through the “with” convention, only a provider statement that the conditions are unrelated defeats it. A combination code is assigned only when it fully identifies the documented conditions; a required second code for the stage, type or manifestation is still reported when the notes ask for it (Guidelines I.B.9, I.A.15).
Guide: Combination codes →
Confirm the condition is documented as complicating the pregnancy, childbirth, or the puerperium, and check the trimester where the code carries one and the fetus character where the category requires it. Chapter 15 codes belong on the maternal record only and take sequencing priority over codes from other chapters. It is the provider’s responsibility to state that a condition is not affecting the pregnancy; the trimester is assigned from the documentation (Guidelines I.C.15.a, I.C.15.a.1, I.C.15.a.3).
Guide: How to choose an ICD-10-CM code →

Documentation check

The provider’s diagnostic statement: Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Trimester: Assigned from the documented trimester at the encounter, or the trimester in which the condition developed for inpatient stays (Guidelines I.C.15.a.3).
The associated condition or complication: Whether the associated condition the title names is documented; the “with” convention presumes some links, and a provider statement that the conditions are unrelated defeats it (Guidelines I.A.15).
The conditions the Use Additional Code note names: Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.
Any detail beyond this code’s title: What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

Excludes2 — not part of O98.32(6 notes)
Coding workflow: The conditions named in this note are not included in O98.32. When the record documents both, both may be reported; the note is a boundary, not a prohibition.
CompareO26.4, O99.82, O99.83, A34, O86, O85
See the official tabular notes · Guidelines I.A.12.b
Use Additional Code — after identifying O98.32(1 note)
Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with O98.32 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.
See the official tabular notes · Guidelines I.A.13

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: Only one of the components this code’s title joins is documented.

Coding question: Is O98.32 supported?

Path: Review the code for the documented component on its own.

Reason: A combination code is assigned only when it fully identifies the documented conditions; otherwise the documented component takes its own code (Guidelines I.B.9).

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with O98.32?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Code Overview

Other infections with a predominantly sexual mode of transmission complicating childbirth is a billable ICD-10-CM diagnosis code (O98.32).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (1)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Delivery (childbirth) (labor), complicated, by, infection (maternal), sexually transmitted NEC

Don’t confuse O98.32 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of O98.32 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

O26.4— Excludes2 relationship (Informational)
Distinct conditions — both may be reported.
A distinct condition — both may be reported when both are documented.
What moves you there: Documentation of herpes gestationis adds O26.4; it is not part of this code and both may be reported when both are documented.
Full comparison: O98.32 vs O26.4 →
O99.82— Excludes2 relationship (Informational)
Distinct conditions — both may be reported.
A distinct condition — both may be reported when both are documented.
What moves you there: Documentation of infectious carrier state adds O99.82; it is not part of this code and both may be reported when both are documented.
Full comparison: O98.32 vs O99.82 →
O99.83— Excludes2 relationship (Informational)
Distinct conditions — both may be reported.
A distinct condition — both may be reported when both are documented.
What moves you there: Documentation of infectious carrier state adds O99.83; it is not part of this code and both may be reported when both are documented.
Full comparison: O98.32 vs O99.83 →
A34— Excludes2 relationship (Informational)
Distinct conditions — both may be reported.
A distinct condition — both may be reported when both are documented.
What moves you there: Documentation of obstetrical tetanus adds A34; it is not part of this code and both may be reported when both are documented.
Full comparison: O98.32 vs A34 →
O86— Excludes2 relationship (Informational)
Distinct conditions — both may be reported.
A distinct condition — both may be reported when both are documented.
What moves you there: Documentation of puerperal infection adds O86; it is not part of this code and both may be reported when both are documented.
Full comparison: O98.32 vs O86 →
O85— Excludes2 relationship (Informational)
Distinct conditions — both may be reported.
A distinct condition — both may be reported when both are documented.
What moves you there: Documentation of puerperal sepsis adds O85; it is not part of this code and both may be reported when both are documented.
Full comparison: O98.32 vs O85 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Verify Before Coding

Age-restricted: the Medicare Code Editor lists this as a maternity (age 9-64) diagnosis; other ages are presumed incorrect.
CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name O98.32 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 10 Excludes2 notes: O20 — Hemorrhage in early pregnancy (via O98.-), O20-O29 — Other maternal disorders predominantly related to pregnancy (O20-O29) (via O98.-), O21 — Excessive vomiting in pregnancy (via O98.-), O22 — Venous complications and hemorrhoids in pregnancy (via O98.-), O23 — Infections of genitourinary tract in pregnancy (via O98.-), O24 — Diabetes mellitus in pregnancy, childbirth, and the puerperium (via O98.-), O25 — Malnutrition in pregnancy, childbirth and the puerperium (via O98.-), O26 — Maternal care for other conditions predominantly related to pregnancy (via O98.-), O28 — Abnormal findings on antenatal screening of mother (via O98.-), O29 — Complications of anesthesia during pregnancy (via O98.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 97 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 1 MS-DRG: DRG 998 (MDC 14).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):PRG023 — Complications specified during childbirth (default); INF010 — Sexually transmitted infections (excluding HIV and hepatitis).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical process (MS-DRG)

Acts as CC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (Complications specified during childbirth, Sexually transmitted infections (excluding HIV and hepatitis)).

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Delivery”; these codes share that main term but sit in a different category of the Tabular List.

Contextual Map

Every relationship of O98.32 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run O98.32 with these 8 related codes in Claim Check

Hierarchy

O00-O9A — Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A) (O00-O9A)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O94-O9A — Other obstetric conditions, not elsewhere classified[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes2 notes (10)

O20 — Hemorrhage in early pregnancy[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
O20-O29 — Other maternal disorders predominantly related to pregnancy (O20-O29)[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
O21 — Excessive vomiting in pregnancy[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
O22 — Venous complications and hemorrhoids in pregnancy[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
O23 — Infections of genitourinary tract in pregnancy[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
O24 — Diabetes mellitus in pregnancy, childbirth, and the puerperium[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
O25 — Malnutrition in pregnancy, childbirth and the puerperium[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
O26 — Maternal care for other conditions predominantly related to pregnancy[Excludes2](via O98.-): “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
and 2 more

Clinical classification (CCSR)

PRG023 — Complications specified during childbirth[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)
INF010 — Sexually transmitted infections (excluding HIV and hepatitis)[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”— CMS MS-DRG Definitions Manual (Appendix C) · FY2026
DRG 998 — PRINCIPAL DIAGNOSIS INVALID AS DISCHARGE DIAGNOSIS[MS-DRG]: “PRINCIPAL DIAGNOSIS INVALID AS DISCHARGE DIAGNOSIS (MDC 14)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

Index entries

Delivery (childbirth) (labor), complicated, by, infection (maternal), sexually transmitted NEC[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (40)

O98 — Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O98.111 — Syphilis complicating pregnancy, first trimester[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O98.112 — Syphilis complicating pregnancy, second trimester[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O98.113 — Syphilis complicating pregnancy, third trimester[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O98.119 — Syphilis complicating pregnancy, unspecified trimester[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O98.12 — Syphilis complicating childbirth[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O98.13 — Syphilis complicating the puerperium[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
O98.2 — Gonorrhea complicating pregnancy, childbirth and the puerperium[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
and 32 more

Change history

FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data: CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data: CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data: CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data: CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship: Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation: Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Change history

FY2016 — October 1, 2015
In the code set at ICD-10-CM adoption
Other infections with a predominantly sexual mode of transmission complicating childbirth

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O98.32 in its code family, with their registry titles.

View all codes in the O98 family

O98.32 ICD-10-CM Code: Other infections with a predominantly sexual mode of transmission complicating childbirth

Coding at a Glance

Inpatient Payment Groups (MS-DRG)

Coding instructions

Includes

Excludes2 — Not Included Here

Use Additional Code

Coder workflow for O98.32

Before you code O98.32

Documentation check

Official instructions as workflow

Coding decision scenarios

Code Overview

Indexed Clinical Terms (1)

Don’t confuse O98.32 with…

Verify Before Coding

Relationships & Classification

MS-DRG Grouper Relationships (FY2026)

Related Codes

Same clinical process (MS-DRG)

Same clinical category (CCSR)

Same Index main term, other category

Contextual Map

Hierarchy

Referenced by Excludes2 notes (10)

Clinical classification (CCSR)

MS-DRG Grouper

Index entries

Nearest codes (40)

Change history

Sources for this page

Change history

Nearest Codes in This Family