O40.039 ICD-10-CA code: Polyhydramnios, third trimester, unspecified as to episode of care, or not applicable
O40.039 is the ICD-10-CA code for “Polyhydramnios, third trimester, unspecified as to episode of care, or not applicable” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
O40.039Polyhydramnios, third trimester, unspecified as to episode of care, or not applicable
Short description: Polyhydramnios 3rd trim/unspec
ICD-10-CA · Canada · Also written O40039
Notes for O40.039
As CIHI prints them, with any note O40.039 takes from the headings above it.
Includes
- HydramniosFrom O40 Polyhydramnios
Excludes
Conditions classified elsewhere.
- 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 O40.039 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 O40Polyhydramnios
- 4Subcategory O40.03Polyhydramnios, third trimester
- 5Valid code O40.039Polyhydramnios, third trimester, 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 O40.039 mean?
O40.039 is the ICD-10-CA code for “Polyhydramnios, third trimester, unspecified as to episode of care, or not applicable” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is O40.039 in ICD-10-CA?
O40.039 sits under O40.03 Polyhydramnios, third trimester, within O40 Polyhydramnios, 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 O40.039?
ICD-10-CA lists Includes, Note, Excludes notes for O40.039, 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.