O62.403 ICD-10-CA code: Hypertonic, incoordinate, and prolonged uterine contractions, antepartum condition or complication
O62.403 is the ICD-10-CA code for “Hypertonic, incoordinate, and prolonged uterine contractions, antepartum condition or complication” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
O62.403Hypertonic, incoordinate, and prolonged uterine contractions, antepartum condition or complication
Short description: Hyperton incoord prol contrctns/antepart
ICD-10-CA · Canada · Also written O62403
Notes for O62.403
As CIHI prints them, with any note O62.403 takes from the headings above it.
Includes
- • Contraction ring dystocia• Dyscoordinate labour• Hour-glass contraction of uterus• Hypertonic uterine dysfunction• Incoordinate uterine action• Tetanic contractions• Uterine dystocia NOSFrom O62.4 Hypertonic, incoordinate, and prolonged uterine contractions
Excludes
Conditions classified elsewhere.
- • dystocia (fetal) (maternal) NOS (O66.9)From O62.4 Hypertonic, incoordinate, and prolonged uterine contractions
- 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 O62.403 sits
- 1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
- 2Block O60-O75Complications of labour and delivery
- 3Category O62Abnormalities of forces of labour
- 4Subcategory O62.4Hypertonic, incoordinate, and prolonged uterine contractions
- 5Valid code O62.403Hypertonic, incoordinate, and prolonged uterine contractions, antepartum 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.
Frequently asked questions
What does ICD-10-CA code O62.403 mean?
O62.403 is the ICD-10-CA code for “Hypertonic, incoordinate, and prolonged uterine contractions, antepartum condition or complication” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is O62.403 in ICD-10-CA?
O62.403 sits under O62.4 Hypertonic, incoordinate, and prolonged uterine contractions, within O62 Abnormalities of forces of labour, within O60-O75 Complications of labour and delivery, within Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99).
What coding notes apply to O62.403?
ICD-10-CA lists Includes, Excludes, Note notes for O62.403, 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.