ICDcodes.org
FY2027

O98.619Protozoal diseases complicating pregnancy, unspecified trimester

BillableUnspecified

Is O98.619 billable?

Yes, but O98.619 is an unspecified code. O98.619 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O98.619 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting O98.619 — the more specific alternatives are listed below.

O98.619 at a glance

CodeO98.619
DescriptionProtozoal diseases complicating pregnancy, unspecified trimester
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does O98.619 group to?

O98.619 sits in MDC 14 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 817Other Antepartum Diagnoses with O.R. Procedures with MCCsurgical
  • 818Other Antepartum Diagnoses with O.R. Procedures with CCsurgical
  • 819Other Antepartum Diagnoses with O.R. Procedures without CC/MCCsurgical

How is O98.619 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under O98.61, the nearest indexed parent of O98.619. Use them to find the family, then select the specific code.

  • Pregnancycomplicated byinfectionprotozoal disease (single) (uterine)

Excludes1 — never code together — inherited from Chapter 15

The conditions below can never be reported together with O98.619 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • supervision of normal pregnancy (Z34.-)

Use additional code — inherited from Chapter 15

Report an additional code alongside O98.619 to fully describe the condition. O98.619 is sequenced first.

  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Use additional code — inherited from O98

Report an additional code alongside O98.619 to fully describe the condition. O98.619 is sequenced first.

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

Excludes2 — not included here — inherited from Chapter 15

The conditions below are not part of O98.619, but a patient may have both at the same time. When documentation supports it, O98.619 and the excluded code may both be reported.

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Excludes2 — not included here — inherited from O98

The conditions below are not part of O98.619, but a patient may have both at the same time. When documentation supports it, O98.619 and the excluded code may both be reported.

  • 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)

How long has O98.619 existed?

O98.619 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the O98.61 family? (3)