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O74.401 ICD-10-CA code: Toxic reaction to local anaesthesia during labour and delivery, delivered, with or without mention of antepartum condition

O74.401 is the ICD-10-CA code for “Toxic reaction to local anaesthesia during labour and delivery, delivered, with or without mention of antepartum condition” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

O74.401

Toxic reaction to local anaesthesia during labour and delivery, delivered, with or without mention of antepartum condition

Short description: Toxic react LA lab&del/delivered

ICD-10-CA · Canada · Also written O74401

Notes for O74.401

As CIHI prints them, with any note O74.401 takes from the headings above it.

Includes

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 O74.401 sits

  1. 1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
  2. 2Block O60-O75Complications of labour and delivery
  3. 3Category O74Complications of anaesthesia during labour and delivery
  4. 4Subcategory O74.4Toxic reaction to local anaesthesia during labour and delivery
  5. 5Valid code O74.401Toxic reaction to local anaesthesia during labour and delivery, delivered, with or without mention of antepartum condition

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 O74.401 in the CIHI source

Frequently asked questions

What does ICD-10-CA code O74.401 mean?

O74.401 is the ICD-10-CA code for “Toxic reaction to local anaesthesia during labour and delivery, delivered, with or without mention of antepartum condition” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is O74.401 in ICD-10-CA?

O74.401 sits under O74.4 Toxic reaction to local anaesthesia during labour and delivery, within O74 Complications of anaesthesia during labour and delivery, within O60-O75 Complications of labour and delivery, within Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99).

What coding notes apply to O74.401?

ICD-10-CA lists Includes, Note, Excludes notes for O74.401, 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.

Codes beside O74.401

O74.402Toxic reaction to local anaesthesia during labour and delivery, delivered, with mention of postpartum complicationO74.403Toxic reaction to local anaesthesia during labour and delivery, antepartum condition or complicationO74.404Toxic reaction to local anaesthesia during labour and delivery, postpartum condition or complicationO74.409Toxic reaction to local anaesthesia during labour and delivery, unspecified as to episode of care, or not applicable