O98.604 ICD-10-CA code: Protozoal diseases complicating pregnancy, childbirth and the puerperium, postpartum condition or complication

O98.604 is the ICD-10-CA code for “Protozoal diseases complicating pregnancy, childbirth and the puerperium, postpartum condition or complication” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

O98.604

Protozoal diseases complicating pregnancy, childbirth and the puerperium, postpartum condition or complication

Short description: Protozoal dis preg birth puerp/postpartu

ICD-10-CA · Canada · Also written O98604

Notes for O98.604

As CIHI prints them, with any note O98.604 takes from the headings above it.

Includes

• Conditions in B50-B64From O98.6 Protozoal diseases complicating pregnancy, childbirth and the puerperium
The listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric careFrom O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Use additional code

Add a code for this detail when the note documents it.

Use additional code (Chapter I) to identify specific condition.From O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
Use additional code (U82-U84) to identify resistance to antimicrobial drugsFrom O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Excludes

Conditions classified elsewhere.

Asymptomatic human immunodeficiency virus [HIV] infection status (Z21)laboratory evidence of human immunodeficiency virus [HIV] (R75)obstetrical tetanus (A34)puerperal:• infection (O86.-)• sepsis (O85)when the reason for maternal care is that the disease is known or suspected to have affected the fetus (O35-O36)From O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
Certain diseases or injuries complicating pregnancy, childbirth, and the puerperium classified elsewhere:external causes (for mortality) (V,W,X,Y)injury, poisoning and certain other consequences of external causes (S00-T88.1, T88.6-T98)mental and behavioural disorders associated with the puerperium (F53.-)obstetrical tetanus (A34)postpartum necrosis of pituitary gland (E23.0)puerperal osteomalacia (M83.0)supervision of:• high-risk pregnancy (Z35.-)• normal pregnancy (Z34.-)From Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99)

Note

For use of categories O95-O97 reference should be made to the mortality coding rules and guidelines.From O94-O99 Other obstetric conditions, not elsewhere classified
The codes included in this chapter are to be used for conditions related to or aggravated by the pregnancy, childbirth or by the puerperium (maternal causes or obstetric causes)From Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99)

Where O98.604 sits

1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
2Block O94-O99Other obstetric conditions, not elsewhere classified
3Category O98Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
4Subcategory O98.6Protozoal diseases complicating pregnancy, childbirth and the puerperium
5Valid code O98.604Protozoal diseases complicating pregnancy, childbirth and the puerperium, postpartum condition or complication

Source and release

Data release: ICD-10-CA · FY 2026–2027
Effective date: Apr 1, 2026
Publisher: CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See O98.604 in the CIHI source

Frequently asked questions

What does ICD-10-CA code O98.604 mean?

O98.604 is the ICD-10-CA code for “Protozoal diseases complicating pregnancy, childbirth and the puerperium, postpartum condition or complication” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is O98.604 in ICD-10-CA?

O98.604 sits under O98.6 Protozoal diseases complicating pregnancy, childbirth and the puerperium, within O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium, within O94-O99 Other obstetric conditions, not elsewhere classified, within Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99).

What coding notes apply to O98.604?

ICD-10-CA lists Includes, Use additional code, Excludes, Note notes for O98.604, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

View O98.6

O98.601Protozoal diseases complicating pregnancy, childbirth and the puerperium, delivered, with or without mention of antepartum condition O98.602Protozoal diseases complicating pregnancy, childbirth and the puerperium, delivered, with mention of postpartum complication O98.603Protozoal diseases complicating pregnancy, childbirth and the puerperium, antepartum condition or complication O98.609Protozoal diseases complicating pregnancy, childbirth and the puerperium, unspecified as to episode of care, or not applicable