Skip to main content

P29.0 ICD-10-CM Code: Neonatal cardiac failure

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

Coding at a Glance

Tabular directives
1 Excludes2 · 1 code-also instruction
Risk adjustment
CMS-HCC V28: 1 category

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 v43, Appendix B.

  • MS-DRG 794 — NEONATE WITH OTHER SIGNIFICANT PROBLEMS (MDC 15)

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.

Risk Adjustment (CMS-HCC)

Payment categories this diagnosis maps to under CMS-HCC V28, payment year 2026.

  • HCC 225 — Acute Heart Failure (Excludes Acute on Chronic) (supersedes HCC 226, HCC 227)

Risk scores depend on the enrollee's full accepted diagnosis set and segment; a category mapping alone does not determine payment.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for P29.0 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on P29.0 itself; “inherited from” names the category or block whose note applies here.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Source: inherited from P29

Code Also

Additional codes that may be required to fully describe the encounter.

  • associated underlying condition

Coder workflow for P29.0

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

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).

Official instructions as workflow

  • Excludes2 — not part of P29.0(1 note)

    Coding workflow: The conditions named in this note are not included in P29.0. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    See the official tabular notes · Guidelines I.A.12.b

  • Code Also — related condition(1 note)

    Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

    See the official tabular notes · Guidelines I.A.17

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.

Code Overview

Neonatal cardiac failure is a billable ICD-10-CM diagnosis code (P29.0).

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

Indexed Clinical Terms (5)

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.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

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 structured relationships — computed from published CMS and AHRQ datasets

Other codes that name P29.0 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 1 Excludes2 note: I50 — Heart failure.

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

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 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 794 (MDC 15).

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

Clinical classification (AHRQ CCSR):PNL013 — Other specified and unspecified perinatal conditions (default).

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 CMS-HCC risk category (V28)

CMS maps these diagnoses to the same Hierarchical Condition Category (Acute Heart Failure (Excludes Acute on Chronic)) for risk-adjusted payment.

I50.21 — Acute systolic (congestive) heart failure, I50.31 — Acute diastolic (congestive) heart failure, I50.41 — Acute combined systolic (congestive) and diastolic (congestive) heart failure, I50.811 — Acute right heart failure, I50.813 — Acute on chronic right heart failure

Related risk categories

These categories interact through CMS's HCC hierarchy — one can suppress the other's risk-adjustment weight when both are present on a claim.

Heart Failure with Heart Assist Device/Artificial Heart, Acute on Chronic Heart Failure, Heart Failure, Except End-Stage and Acute, Cardiomyopathy/Myocarditis

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Other specified and unspecified perinatal conditions).

P09 — Abnormal findings on neonatal screening, P09.1 — Abnormal findings on neonatal screening for inborn errors of metabolism, P09.2 — Abnormal findings on neonatal screening for congenital endocrine disease, P09.3 — Abnormal findings on neonatal screening for congenital hematologic disorders, P09.4 — Abnormal findings on neonatal screening for cystic fibrosis, P09.5 — Abnormal findings on neonatal screening for critical congenital heart disease, P09.6 — Abnormal findings on neonatal hearing screening, P09.8 — Other abnormal findings on neonatal screening, P09.9 — Abnormal findings on neonatal screening, unspecified, P22.1 — Transient tachypnea of newborn, P29.11 — Neonatal tachycardia, P29.12 — Neonatal bradycardia, P29.2 — Neonatal hypertension, P29.3 — Persistent fetal circulation, P29.30 — Pulmonary hypertension of newborn, P29.38 — Other persistent fetal circulation, P29.4 — Transient myocardial ischemia in newborn, P29.81 — Cardiac arrest of newborn, P29.89 — Other cardiovascular disorders originating in the perinatal period, P29.9 — Cardiovascular disorder originating in the perinatal period, unspecified, +74 more

Same Index main term, other category

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

O90.3 — Peripartum cardiomyopathy (heart, peripartum), O90.49 — Other postpartum acute kidney failure (renal, following, labor and delivery), O90.89 — Other complications of the puerperium, not elsewhere classified (cervix, puerperal, postpartum), 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), P11.0 — Cerebral edema due to birth injury (brain, due to birth injury), P28.0 — Primary atelectasis of newborn (expansion terminal respiratory units), P28.5 — Respiratory failure of newborn (respiratory, newborn), P28.89 — Other specified respiratory conditions of newborn (pulmonary, newborn), P52.4 — Intracerebral (nontraumatic) hemorrhage of newborn (brain, newborn), P83.30 — Unspecified edema specific to newborn (newborn), P83.39 — Other edema specific to newborn (newborn, specified NEC), P91.88 — Other specified disturbances of cerebral status of newborn (vital centers, newborn), P92.6 — Failure to thrive in newborn (to thrive, newborn), P96.0 — Congenital renal failure (renal, congenital), Q10.3 — Other congenital malformations of eyelid (tarso-orbital fascia, congenital), Q22.2 — Congenital pulmonary valve insufficiency (pulmonary, valve, congenital), Q22.8 — Other congenital malformations of tricuspid valve (tricuspid, congenital), Q23.1 — Congenital insufficiency of aortic valve (aortic, congenital), +267 more

Contextual Map

Every relationship of P29.0 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 P29.0 with this related code in Claim Check

Hierarchy

Referenced by Excludes2 notes

  • I50 — Heart failure[Excludes2]: “neonatal cardiac failure (P29.0)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

Risk adjustment (CMS-HCC)

  • HCC 225 — Acute Heart Failure (Excludes Acute on Chronic) [CMS-HCC]: “Acute Heart Failure (Excludes Acute on Chronic) — supersedes HCC 226 (Heart Failure, Except End-Stage and Acute), HCC 227 (Cardiomyopathy/Myocarditis)”— CMS-HCC V28 · 2026

MS-DRG Grouper

MDC crossing

Index entries

  • Edema, edematous (infectious) (pitting) (toxic), lung, with heart condition or failure, newborn[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Failure, failed, heart (acute) (senile) (sudden), congestive, newborn[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Failure, failed, heart (acute) (senile) (sudden), newborn[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Insufficiency, insufficient, heart, newborn[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Insufficiency, insufficient, myocardial, myocardium (with arteriosclerosis), newborn[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (13)

Change history

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

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 FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 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 — v43 Release, file and checksum · Publisher’s page
Risk adjustment Official source data
2026 Mid-Year Final ICD-10 Mappings + Model Software (cms.gov/files/zip/2026-midyear-final-icd-10-mappings.zip, 2026-midyear-final-model-software.zip) — CMS-HCC V28, PY2026 mid-year final release 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 structured 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 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.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

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. "P29.0 — Neonatal cardiac failure." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/p29.0-neonatal-cardiac-failure

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Neonatal cardiac failure

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), 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 P29.0 in its code family, with their registry titles.

View all codes in the P29 family