2026 ICD-10-CM Diagnosis Code P07.30Preterm newborn, unspecified weeks of gestation

ICD-10-CM Codes›P00–P96›P05-P08›P07

ICD-10-CM P07.30
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

P07.30 is a billable ICD-10-CM diagnosis code for preterm newborn, unspecified weeks of gestation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 791 through 792. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Short gestation; low birth weight; and fetal growth retardation.

Code Identity

ICD-10-CM Code
P07.30
Billable Status
Yes — Valid for Submission
Code Describes
Preterm newborn, unspecified weeks of gestation
Short Description
Preterm newborn, unspecified weeks of gestation
Same as the full description in the CMS dataset.
Parent Code
P07.3
Preterm [premature] newborn [other]

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP05-P08Disorders of newborn related to length of gestation and fetal growth
CategoryP07Disorders of newborn related to short gestation and low birth weight, not elsewhere classified
This CodeP07.30Preterm newborn, unspecified weeks of gestation

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Baby premature 24-26 weeks
  • Baby premature 26-28 weeks
  • Baby premature 28-32 weeks
  • Baby premature 32-36 weeks
  • Baby premature at delivery less than 32 weeks
  • Chronic pulmonary insufficiency of prematurity
  • Chronic respiratory disease originating in perinatal period
  • Complication of prematurity
  • Disorder relating to short gestation AND/OR low birthweight
  • Gestation abnormality
  • Metabolic bone disease of prematurity
  • Moderate to late prematurity of infant
  • Neonatal respiratory distress
  • Neonatal rickets
  • Physiological anomaly of neonatal skin
  • Premature birth of fraternal twins, both living
  • Premature birth of fraternal twins, both stillborn
  • Premature birth of fraternal twins, one living, one stillborn
  • Premature birth of identical twins, both living
  • Premature birth of identical twins, both stillborn
  • Premature birth of identical twins, one living, one stillborn
  • Premature birth of multiple newborns
  • Premature birth of newborn
  • Premature birth of newborn triplets
  • Premature birth of newborn twins
  • Premature birth of stillborn twins
  • Premature infant
  • Premature infant 28-37 weeks
  • Prematurity of infant
  • Respiratory distress
  • Respiratory distress in early neonatal period
  • Respiratory instability of prematurity
  • Respiratory insufficiency syndrome of newborn
  • Rickets due to prematurity
  • Sepsis of premature infant
  • Short fetal gestation
  • Single live birth from multiple pregnancy
  • Skin fragility of prematurity
  • Triplet birth
  • Twins - both live born
  • Twins - both stillborn
  • Twins - one still and one live born

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Preterm
      • newborn (infant)

Clinical ClassificationClinical

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

CCSR PNL002
Short gestation; low birth weight; and fetal growth retardation
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Premature Babies

Almost 1 of every 10 infants born in the United States are premature, or preemies. A premature birth is when a baby is born before 37 completed weeks of pregnancy. A full-term pregnancy is 40 weeks.

Read the full article at MedlinePlus

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

Convert P07.30 to ICD-9-CMHistory

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

ICD-9-CM
765.09 Extreme immat 2500+g
Approximate The match is approximate rather than exact.
ICD-9-CM
765.19 Preterm NEC 2500+g
Approximate The match is approximate rather than exact.
ICD-9-CM
765.20 Weeks of gestation 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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About P07.30Overview

Is P07.30 (Preterm [premature] newborn [other]) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report preterm newborn, unspecified weeks of gestation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does P07.30 group to?

When preterm newborn, unspecified weeks of gestation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 791, 792, with relative weights from 2.4492 to 4.0590 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of P07.30?

Under the General Equivalence Mappings, preterm newborn, unspecified weeks of gestation converts to ICD-9-CM 765.09 (extreme immat 2500+g), 765.19 (preterm NEC 2500+g), and 765.20 (weeks of gestation NOS). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.