2026 ICD-10-CM Diagnosis Code P36.0Sepsis of newborn due to streptococcus, group B

ICD-10-CM Codes›P00–P96›P35-P39›P36

ICD-10-CM P36.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

P36.0 is a billable ICD-10-CM diagnosis code for sepsis of newborn due to streptococcus, group B. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Bacterial infections, Perinatal infections, and Septicemia.

Code Identity

ICD-10-CM Code
P36.0
Billable Status
Yes — Valid for Submission
Code Describes
Sepsis of newborn due to streptococcus, group B
Short Description
Sepsis of newborn due to streptococcus, group B
Same as the full description in the CMS dataset.
Parent Code
P36
Bacterial sepsis of newborn

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP35-P39Infections specific to the perinatal period
CategoryP36Bacterial sepsis of newborn
This CodeP36.0Sepsis of newborn due to streptococcus, group B

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bacterial sepsis of newborn
  • Early-onset neonatal sepsis
  • Neonatal sepsis caused by Streptococcus
  • Perinatal sepsis
  • Perinatal sepsis caused by Streptococcus agalactiae
  • Sepsis caused by Streptococcus agalactiae
  • Sepsis of newborn caused by group B Streptococcus
  • Sepsis of newborn due to Streptococcus agalactiae
  • Septic shock co-occurrent with acute organ dysfunction caused by Streptococcus
  • Septic shock co-occurrent with acute organ dysfunction due to Gram-positive coccus
  • Septic shock co-occurrent with acute organ dysfunction due to Group B streptococcus

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.

    • Infection, infected, infective(opportunistic)
      • streptococcal NEC
        • congenital
          • sepsis
            • group B
    • Newborn(infant) (liveborn) (singleton)
      • sepsis (congenital)
        • due to
          • Streptococcus
            • group B
    • Sepsis(generalized) (unspecified organism)
      • newborn
        • due to
          • Streptococcus
            • group B
    • Sepsis(generalized) (unspecified organism)
      • Streptococcus, streptococcal
        • neonatal
          • group B

Clinical ClassificationClinical

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

CCSR INF003
Bacterial infections
Default principal diagnosis: inpatient No · outpatient No
CCSR PNL009
Perinatal infections
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF002
Septicemia
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Sepsis

Sepsis is your body's overactive and extreme response to an infection. Sepsis is a life-threatening medical emergency. Without quick treatment, it can lead to tissue damage, organ failure, and even death.

The full article covers:

  • What is sepsis?
  • What causes sepsis?
  • Who is more likely to develop sepsis?
  • What are the symptoms of sepsis?
  • What other problems can sepsis cause?
  • How is sepsis diagnosed?
  • What are the treatments for sepsis?
  • Can sepsis be prevented?

Read the full article at MedlinePlus

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

Convert P36.0 to ICD-9-CMHistory

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

ICD-9-CM
771.81 NB septicemia [sepsis]
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 P36.0Overview

Is P36.0 (Bacterial sepsis of newborn) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report sepsis of newborn due to streptococcus, group B on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of P36.0?

Under the General Equivalence Mappings, sepsis of newborn due to streptococcus, group B converts to ICD-9-CM 771.81 (NB septicemia [sepsis]). 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.