P29.38 ICD-10-CM Code: Other persistent fetal circulation

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for P29.38 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 P29.38 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for P29.38

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

Before you code P29.38

1. “Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on P29.38; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).

   ReviewP29.30

   See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

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).

Any detail beyond this code’s title

What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

• Excludes2 — not part of P29.38(1 note)

  Coding workflow: The conditions named in this note are not included in P29.38. 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

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.

Indexed Clinical Terms (3)

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.

• Circulation, fetal, persistent
• Delay, delayed, closure, ductus arteriosus (Botalli)
• Persistence, persistent (congenital), fetal, circulation

Don’t confuse P29.38 with…

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

The codes most likely to be picked instead of P29.38 — 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.

• Q20— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of congenital malformations of the circulatory system adds Q20; it is not part of this code and both may be reported when both are documented.

  Full comparison: P29.38 vs Q20 →

• Q28— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of congenital malformations of the circulatory system adds Q28; it is not part of this code and both may be reported when both are documented.

  Full comparison: P29.38 vs Q28 →

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.

Verify Before Coding

• MCC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

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

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: MCC — Major Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 12 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 2 MS-DRGs: DRG 791 (MDC 15), DRG 793 (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 clinical process (MS-DRG)

Acts as MCC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

I27.0 — Primary pulmonary hypertension, I27.20 — Pulmonary hypertension, unspecified, I27.21 — Secondary pulmonary arterial hypertension, I27.22 — Pulmonary hypertension due to left heart disease, I27.23 — Pulmonary hypertension due to lung diseases and hypoxia, I27.24 — Chronic thromboembolic pulmonary hypertension, I27.29 — Other secondary pulmonary hypertension, I27.81 — Cor pulmonale (chronic), I27.83 — Eisenmenger's syndrome, I27.89 — Other specified pulmonary heart diseases, I27.9 — Pulmonary heart disease, unspecified

Same clinical category (CCSR)

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

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, P29.0 — Neonatal cardiac failure, P29.11 — Neonatal tachycardia, P29.12 — Neonatal bradycardia, P29.2 — Neonatal hypertension, P29.3 — Persistent fetal circulation, P29.30 — Pulmonary hypertension of newborn, 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, P70.0 — Syndrome of infant of mother with gestational diabetes, P70.1 — Syndrome of infant of a diabetic mother, P70.2 — Neonatal diabetes mellitus, P70.3 — Iatrogenic neonatal hypoglycemia, P70.4 — Other neonatal hypoglycemia, P70.8 — Other transitory disorders of carbohydrate metabolism of newborn, +74 more

Same Index main term, other category

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

I45.9 — Conduction disorder, unspecified (conduction), I99.8 — Other disorder of circulatory system (collateral, any site), I99.9 — Unspecified disorder of circulatory system (defective), K00.6 — Disturbances in tooth eruption (primary, teeth), K30 — Functional dyspepsia (gastric emptying), N91.0 — Primary amenorrhea (menstruation), O63.2 — Delayed delivery of second twin, triplet, etc. (delivery, second twin, triplet, etc), O63.9 — Long labor, unspecified (birth or delivery NOS), O66.9 — Obstructed labor, unspecified (any plane in pelvis, complicating delivery), P28.9 — Respiratory condition of newborn, unspecified (primary respiration), P76.0 — Meconium plug syndrome (passage of meconium), P96.82 — Delayed separation of umbilical cord (separation of umbilical cord), Q12.2 — Coloboma of lens (tunica vasculosa lentis), Q12.8 — Other congenital lens malformations (capsule), Q13.89 — Other congenital malformations of anterior segment of eye (pupillary membrane), Q14.0 — Congenital malformation of vitreous humor (hyaloid, artery), Q14.8 — Other congenital malformations of posterior segment of eye (hyaloid, system), Q16.3 — Congenital malformation of ear ossicles (arteria stapedia), Q18.0 — Sinus, fistula and cyst of branchial cleft (branchial cleft NOS, cyst), Q18.2 — Other branchial cleft malformations (branchial cleft NOS), +48 more

Contextual Map

Every relationship of P29.38 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.

Hierarchy

• P00-P96 — Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96) (P00-P96)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Clinical classification (CCSR)

• PNL013 — Other specified and unspecified perinatal conditions[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• MCC — Major Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (MCC).”— CMS MS-DRG Definitions Manual (Appendix C) · FY2026
• DRG 791 — PREMATURITY WITH MAJOR PROBLEMS[MS-DRG]: “PREMATURITY WITH MAJOR PROBLEMS (MDC 15)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 793 — FULL TERM NEONATE WITH MAJOR PROBLEMS[MS-DRG]: “FULL TERM NEONATE WITH MAJOR PROBLEMS (MDC 15)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• MDC 15 — Newborns and Other Neonates with Conditions Originating in Perinatal Period[MDC crossing]: “Newborns and Other Neonates with Conditions Originating in Perinatal Period — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Circulation, fetal, persistent[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Delay, delayed, closure, ductus arteriosus (Botalli)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Persistence, persistent (congenital), fetal, circulation[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (13)

• P29 — Cardiovascular disorders originating in the perinatal period[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P29.0 — Neonatal cardiac failure[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P29.1 — Neonatal cardiac dysrhythmia[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P29.11 — Neonatal tachycardia[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P29.12 — Neonatal bradycardia[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P29.2 — Neonatal hypertension[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P29.3 — Persistent fetal circulation[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P29.30 — Pulmonary hypertension of newborn[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 5 more

Change history

• FY2018 — Added to the code set[Change history]— CMS release files (code change ledger) · icd10cm-fy2018

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

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

Nearest Codes in This Family

Official ICD-10-CM classifications closest to P29.38 in its code family, with their registry titles.

• P29.11 — Neonatal tachycardia
• P29.12 — Neonatal bradycardia
• P29.2 — Neonatal hypertension
• P29.3 — Persistent fetal circulation
• P29.30 — Pulmonary hypertension of newborn
• P29.4 — Transient myocardial ischemia in newborn
• P29.8 — Other cardiovascular disorders originating in the perinatal period
• 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

View all codes in the P29 family