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O74.2 ICD-10-CM Code: Cardiac complications of anesthesia during labor and delivery

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Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

Tabular directives
1 inclusion term · 1 use-additional code

Billable · FY2027A valid, specific ICD-10-CM code, reportable for dates of service in FY2027.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too, and is marked with where it comes from.

Use additional codefrom O74Report with this code when documented
  • Use additional code, if applicable, to identify specific complication
Includesfrom O74What O74 covers
  • maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during labor and delivery

Where it sits Source: CMS/NCHS

Under:Chapter 15: Pregnancy, Childbirth and the PuerperiumO60-O77 Complications of labor and deliveryO74 Complications of anesthesia during labor and delivery

CompareCheck ClaimView Related Codes

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v44, Appendix B.

  • MS-DRG 998 — PRINCIPAL DIAGNOSIS INVALID AS DISCHARGE DIAGNOSIS (MDC 14)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for O74.2 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on O74.2 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during labor and delivery

Source: inherited from O74

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code, if applicable, to identify specific complication

Source: inherited from O74

Coder workflow for O74.2

MedCoder structured workflow — derived from this code’s own official record

Before you code O74.2

  1. Confirm the condition is documented as complicating the pregnancy, childbirth, or the puerperium, and check the trimester where the code carries one and the fetus character where the category requires it. Chapter 15 codes belong on the maternal record only and take sequencing priority over codes from other chapters. It is the provider’s responsibility to state that a condition is not affecting the pregnancy; the trimester is assigned from the documentation (Guidelines I.C.15.a, I.C.15.a.1, I.C.15.a.3).

    Guide: How to choose an ICD-10-CM code →

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Trimester
Assigned from the documented trimester at the encounter, or the trimester in which the condition developed for inpatient stays (Guidelines I.C.15.a.3).
The conditions the Use Additional Code note names
Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.

Official instructions as workflow

  • Use Additional Code — after identifying O74.2(1 note)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with O74.2 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

    See the official tabular notes · Guidelines I.A.13

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with O74.2?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Don’t confuse O74.2 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of O74.2 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • O74.9— Specificity relationship (Review)

    Overlapping diagnoses in the same category.

    Overlapping codes in the same category — the documentation decides which is the more specific fit.

    What moves you there: A record that documents no more than “Complication of anesthesia during labor and delivery, unspecified” takes O74.9; specificity in the record moves it back here.

    Full comparison: O74.2 vs O74.9 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Cardiac complications of anesthesia during labor and delivery is a billable ICD-10-CM diagnosis code (O74.2).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Verify Before Coding

  • Age-restricted: the Medicare Code Editor lists this as a maternity (age 9-64) diagnosis; other ages are presumed incorrect.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name O74.2 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 2 Excludes1 notes: T41 — Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases (via O74.-), T88.2 — Shock due to anesthesia (via O74.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 3 Excludes2 notes across 2 chapters: O29 — Complications of anesthesia during pregnancy (via O74.-), O75.4 — Other complications of obstetric surgery and procedures (via O74.-), T88 — Other complications of surgical and medical care, not elsewhere classified (via O74.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

MS-DRG Grouper Relationships (FY2027)

Potential MS-DRG participation — not a DRG assignment.

FY2027 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 1 MS-DRG: DRG 998 (MDC 14).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):PRG025 — Anesthesia complications during pregnancy (default); PRG023 — Complications specified during childbirth.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (Anesthesia complications during pregnancy, Complications specified during childbirth).

O71.5 — Other obstetric injury to pelvic organs, O71.6 — Obstetric damage to pelvic joints and ligaments, O71.7 — Obstetric hematoma of pelvis, O71.81 — Laceration of uterus, not elsewhere classified, O71.89 — Other specified obstetric trauma, O71.9 — Obstetric trauma, unspecified, O73.0 — Retained placenta without hemorrhage, O73.1 — Retained portions of placenta and membranes, without hemorrhage, O74.0 — Aspiration pneumonitis due to anesthesia during labor and delivery, O74.1 — Other pulmonary complications of anesthesia during labor and delivery, O74.3 — Central nervous system complications of anesthesia during labor and delivery, O74.4 — Toxic reaction to local anesthesia during labor and delivery, O74.5 — Spinal and epidural anesthesia-induced headache during labor and delivery, O74.6 — Other complications of spinal and epidural anesthesia during labor and delivery, O74.7 — Failed or difficult intubation for anesthesia during labor and delivery, O74.8 — Other complications of anesthesia during labor and delivery, O74.9 — Complication of anesthesia during labor and delivery, unspecified, O75.0 — Maternal distress during labor and delivery, O75.1 — Shock during or following labor and delivery, O75.2 — Pyrexia during labor, not elsewhere classified, +147 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Failure, failed”, “Arrest, arrested”; these codes share that main term but sit in a different category of the Tabular List.

O32.4 — Maternal care for high head at term (descent of head), O61.0 — Failed medical induction of labor (induction, medical), O61.1 — Failed instrumental induction of labor (induction, surgical), O61.8 — Other failed induction of labor (induction, specified NEC), O61.9 — Failed induction of labor, unspecified (induction), O62.0 — Primary inadequate contractions (cervical dilatation in labor), O64.0 — Obstructed labor due to incomplete rotation of fetal head (transverse), O66.40 — Failed trial of labor, unspecified (trial of labor), O66.41 — Failed attempted vaginal birth after previous cesarean delivery (trial of labor, following previous cesarean delivery), O66.5 — Attempted application of vacuum extractor and forceps (forceps NOS), O75.4 — Other complications of obstetric surgery and procedures (heart, complicating, delivery), O89.1 — Cardiac complications of anesthesia during the puerperium (heart, complicating, anesthesiaor other sedation, postpartum, puerperal), O89.6 — Failed or difficult intubation for anesthesia during the puerperium (intubation during anesthesia, postpartum, puerperal), O90.3 — Peripartum cardiomyopathy (heart, peripartum), O90.49 — Other postpartum acute kidney failure (renal, following, labor and delivery), O92.3 — Agalactia (lactation), O92.4 — Hypogalactia (lactation, partial), P09.5 — Abnormal findings on neonatal screening for critical congenital heart disease (newborn screening, neonatal congenital heart disease), P28.0 — Primary atelectasis of newborn (expansion terminal respiratory units), P28.5 — Respiratory failure of newborn (respiration, respiratory, newborn), +149 more

Contextual Map

Every relationship of O74.2 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run O74.2 with these 5 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes

Referenced by Excludes2 notes

Clinical classification (CCSR)

MS-DRG Grouper

Index entries

  • Arrest, arrested, cardiac, complicating, anesthesiaor other sedation (general) (local), in labor and delivery[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Complication (s) (from) (of), anesthesia, anesthetic, cardiac, in, labor and delivery[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Complication (s) (from) (of), sedation during labor and delivery, cardiac[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Failure, failed, heart (acute) (senile) (sudden), complicating, anesthesiaor other sedation (general) (local), in labor and delivery[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes (10)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Indexed Clinical Terms (4)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "O74.2 — Cardiac complications of anesthesia during labor and delivery." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/o74.2-cardiac-complications-of-anesthesia-during-labor-and-delivery

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Cardiac complications of anesthesia during labor and delivery

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O74.2 in its code family, with their registry titles.

View all codes in the O74 family