2027 ICD-10-CM Diagnosis Code O98.019Tuberculosis complicating pregnancy, unspecified trimester

ICD-10-CM Codes›O00-O9A›O94-O9A›O98

ICD-10-CM O98.019
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O98.019 is a billable ICD-10-CM diagnosis code for tuberculosis complicating pregnancy, unspecified trimester. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 817 through 819, 831 through 833. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as infectious disease of mother complicating pregnancy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified complications in pregnancy and Tuberculosis.

Code Identity

ICD-10-CM Code
O98.019
Billable Status
Yes — Valid for Submission
Code Describes
Tuberculosis complicating pregnancy, unspecified trimester
Short Description
Tuberculosis complicating pregnancy, unspecified trimester
Same as the full description in the CMS dataset.
Parent Code
Tuberculosis complicating pregnancy

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 CodeO98.019Tuberculosis complicating pregnancy, unspecified trimester

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O98.019.

The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Infectious disease of mother complicating pregnancy
  • Maternal tuberculosis during pregnancy, childbirth and/or puerperium
  • Tuberculosis in pregnancy

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O98.019: its own notes plus those printed at O98 and Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium applies to 60 codes
  • the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium applies to 60 codes
  • 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)
From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium applies to 60 codes
  • code (Chapter 1), to identify specific infectious or parasitic disease
From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name O98.019, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming O98.019: its condition is not part of those codes, and both may be reported when the patient has both.

  • Chapter 1 (A00-B99) Certain infectious and parasitic diseases
    infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) names O98.-, which includes this code
  • O23 Infections of genitourinary tract in pregnancy
    tuberculosis of genitourinary system complicating pregnancy, childbirth and the puerperium (O98.0) names O98.0, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG028
Other specified complications in pregnancy
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF001
Tuberculosis
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Infections and Pregnancy

During pregnancy, some common infections such as the common cold or a skin infection do not usually cause serious problems. Some infections, such as the flu, can be more severe when you're pregnant. But other infections can be harmful to you, your fetus, or both.

The full article covers:

  • How can infections affect your pregnancy?
  • What infections can be harmful during pregnancy?
  • What are the symptoms of an infection during pregnancy?
  • What are the treatments for infections during pregnancy?
  • Can infections during pregnancy be prevented?

Read the full article at MedlinePlus

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

Convert O98.019 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
647.30 TB in preg-unspecified
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O98.019Overview

What is the ICD-10 code for tuberculosis complicating pregnancy, unspecified trimester?

The ICD-10-CM code for tuberculosis complicating pregnancy, unspecified trimester is O98.019 (sometimes written as O98019). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is O98.019 (Tuberculosis complicating pregnancy) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report tuberculosis complicating pregnancy, unspecified trimester on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does O98.019 group to?

When tuberculosis complicating pregnancy, unspecified trimester is the principal diagnosis on an inpatient stay, it groups to MS-DRG 833, 832, 831, 819, 818, 817, with relative weights from 0.5000 to 1.7586 depending on complications. Higher weights mean higher Medicare reimbursement.

Who can O98.019 be reported for?

The Medicare Code Editor checks tuberculosis complicating pregnancy, unspecified trimester against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

Does O98.019 need an additional code?

When the condition applies, yes. The Use Additional Code note at O98, which applies to O98.019, reads: code (Chapter 1), to identify specific infectious or parasitic disease. The additional code is reported after O98.019.