2027 ICD-10-CM Diagnosis Code P24.9Neonatal aspiration, unspecified

ICD-10-CM Codes›P00–P96›P19-P29›P24

ICD-10-CM P24.9
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

P24.9 is a billable ICD-10-CM diagnosis code for neonatal aspiration, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 791, 793. Coders also document this condition as aspiration into respiratory tract. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Respiratory perinatal condition.

Code Identity

ICD-10-CM Code
P24.9
Billable Status
Yes — Valid for Submission
Code Describes
Neonatal aspiration, unspecified
Short Description
Neonatal aspiration, unspecified
Same as the full description in the CMS dataset.
Parent Code
P24
Neonatal aspiration

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP19-P29Respiratory and cardiovascular disorders specific to the perinatal period
CategoryP24Neonatal aspiration
This CodeP24.9Neonatal aspiration, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Aspiration into respiratory tract
  • Neonatal aspiration syndrome

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to P24.9: its own notes plus those printed at P24 and Chapter 16. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From P24 Neonatal aspiration applies to 11 codes
  • aspiration in utero and during delivery
From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • tetanus neonatorum (A33)

Notes

General instructions on how these codes are used.

From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • Codes from this chapter are for use on newborn records only, never on maternal records

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name P24.9, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming P24.9: they are not reported together with it, unless the two conditions are unrelated.

  • J18 Pneumonia, unspecified organism
    neonatal aspiration pneumonia (P24.-) names P24.-, which includes this code
  • J69 Pneumonitis due to solids and liquids
    neonatal aspiration syndromes (P24.-) names P24.-, which includes this code
  • P23 Congenital pneumonia
    neonatal pneumonia resulting from aspiration (P24.-) names P24.-, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming P24.9: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block J09-J18 Influenza and pneumonia
    neonatal aspiration pneumonia (P24.-) names P24.-, which includes this code
  • J12 Viral pneumonia, not elsewhere classified
    neonatal aspiration pneumonia (P24.-) names P24.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PNL006
Respiratory perinatal condition
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Lung Diseases

When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day, you breathe nearly 25,000 times. People with lung disease have difficulty breathing. Millions of people in the U.S. have lung disease.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert P24.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
770.10 Fetal & newborn asp NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About P24.9Overview

What is the ICD-10 code for neonatal aspiration, unspecified?

The ICD-10-CM code for neonatal aspiration, unspecified is P24.9 (sometimes written as P249). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is P24.9 (Neonatal aspiration) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report neonatal aspiration, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does P24.9 group to?

When neonatal aspiration, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, with relative weights from 4.1073 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of P24.9?

Under the General Equivalence Mappings, neonatal aspiration, unspecified converts to ICD-9-CM 770.10 (fetal & newborn asp NOS). The mapping is approximate, so confirm the match fits the documentation.