O35.309 ICD-10-CA code: Maternal care for (suspected) damage to fetus from viral disease in mother, unspecified as to episode of care, or not applicable
O35.309 is the ICD-10-CA code for “Maternal care for (suspected) damage to fetus from viral disease in mother, unspecified as to episode of care, or not applicable” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
O35.309Maternal care for (suspected) damage to fetus from viral disease in mother, unspecified as to episode of care, or not applicable
Short description: Mat care dam fet mat viral dis/unspec
ICD-10-CA · Canada · Also written O35309
Notes for O35.309
As CIHI prints them, with any note O35.309 takes from the headings above it.
Includes
- • Maternal care for (suspected) damage to fetus from maternal cytomegalovirus infection• Maternal care for (suspected) damage to fetus from maternal rubellaFrom O35.3 Maternal care for (suspected) damage to fetus from viral disease in mother
- The listed conditions in the fetus as a reason for observation, hospitalization or other obstetric care of the mother, or for termination of pregnancyFrom O35 Maternal care for known or suspected fetal abnormality and damage
Excludes
Conditions classified elsewhere.
- Maternal care for known or suspected disproportion (O33.-)From O35 Maternal care for known or suspected fetal abnormality and damage
- 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
- 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 O35.309 sits
- 1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
- 2Block O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
- 3Category O35Maternal care for known or suspected fetal abnormality and damage
- 4Subcategory O35.3Maternal care for (suspected) damage to fetus from viral disease in mother
- 5Valid code O35.309Maternal care for (suspected) damage to fetus from viral disease in mother, unspecified as to episode of care, or not applicable
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.
Frequently asked questions
What does ICD-10-CA code O35.309 mean?
O35.309 is the ICD-10-CA code for “Maternal care for (suspected) damage to fetus from viral disease in mother, unspecified as to episode of care, or not applicable” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is O35.309 in ICD-10-CA?
O35.309 sits under O35.3 Maternal care for (suspected) damage to fetus from viral disease in mother, within O35 Maternal care for known or suspected fetal abnormality and damage, within O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems, within Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99).
What coding notes apply to O35.309?
ICD-10-CA lists Includes, Excludes, Note notes for O35.309, 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.