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P36 ICD-10-CM Code: Bacterial sepsis of newborn

P36 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools

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Code lookupP36

FY 2026 Apr update / Certain conditions originating in the perinatal period (P00-P96) / Infections specific to the perinatal period (P35-P39)

P36

Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidance

Bacterial sepsis of newborn

OverviewRisk ModelsCode BookDocumentationAuditNotesEdition comparison

CMS-HCC V28

N/A

—

Not mapped

CMS-HCC V24

N/A

—

Not mapped

ACA/HHS

N/A

—

Not mapped

ESRD/PACE

N/A

—

Not mapped

RXHCC

N/A

—

Not mapped

Code Book Path

Official
P3Infections specific to the perinatal period (P35-P39)P36Bacterial sepsis of newborn

Inclusion Terms

Official
  • Infections acquired in utero, during birth via the umbilicus, or during the first 28 days after birthInherited from P35-P39

Excludes 2

Official
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Inherited from P00-P96, P35-P39
  • endocrine, nutritional and metabolic diseases (E00-E88)Inherited from P00-P96, P35-P39
  • injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from P00-P96, P35-P39
  • neoplasms (C00-D49)Inherited from P00-P96, P35-P39
  • tetanus neonatorum (A33)Inherited from P00-P96, P35-P39
  • asymptomatic human immunodeficiency virus [HIV] infection status (Z21)Inherited from P00-P96, P35-P39
  • congenital gonococcal infection (A54.-)Inherited from P00-P96, P35-P39
  • congenital pneumonia (P23.-)Inherited from P00-P96, P35-P39
  • congenital syphilis (A50.-)Inherited from P00-P96, P35-P39
  • human immunodeficiency virus [HIV] disease (B20)Inherited from P00-P96, P35-P39
  • infant botulism (A48.51)Inherited from P00-P96, P35-P39
  • infectious diseases not specific to the perinatal period (A00-B99, J09, J10.-)Inherited from P00-P96, P35-P39
  • intestinal infectious disease (A00-A09)Inherited from P00-P96, P35-P39
  • laboratory evidence of human immunodeficiency virus [HIV] (R75)Inherited from P00-P96, P35-P39

Related Codes

Official
P36.0Sepsis of newborn due to streptococcus, group BP36.1Sepsis of newborn due to other and unspecified streptococciP36.2Sepsis of newborn due to Staphylococcus aureusP36.3Sepsis of newborn due to other and unspecified staphylococciP36.4Sepsis of newborn due to Escherichia coli

Includes

Official
  • congenital sepsis
  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs laterInherited from P00-P96

Excludes 1

Official

No Excludes 1 notes are included in this display for P36. Check the code and parent instructions in the Code Book.

Code First

Official

No Code First sequencing instructions are included in this display for P36. Check the code and parent instructions in the Code Book.

Use Additional

Official
  • code(s), if applicable, to identify severe sepsis (R65.2-) and associated acute organ dysfunction(s)

Code Also

Official

No Code Also instructions are included in this display for P36. Check the code and parent instructions in the Code Book.

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Code
P36
Description
Bacterial sepsis of newborn
HCC (V28)
No CMS-HCC V28 mapping
RAF reference coefficient
—
Billable
No
Payment year
2026

Coder workflow notes

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What This Code Means

P36 is the ICD-10-CM diagnosis code for bacterial sepsis of newborn. P36 sits in the ICD-10-CM chapter for certain conditions originating in the perinatal period (p00-p96), within the section covering infections specific to the perinatal period (p35-p39).

Header codes like P36 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for P36 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Includes

  • congenital sepsis

Use Additional Code

  • code(s), if applicable, to identify severe sepsis (R65.2-) and associated acute organ dysfunction(s)

Child Codes

P36.0Sepsis of newborn due to streptococcus, group B
HCC 2
P36.1Sepsis of newborn due to other and unspecified streptococci
P36.2Sepsis of newborn due to Staphylococcus aureus
HCC 2
P36.3Sepsis of newborn due to other and unspecified staphylococci
P36.4Sepsis of newborn due to Escherichia coli
HCC 2
P36.5Sepsis of newborn due to anaerobes
HCC 2
P36.8Other bacterial sepsis of newborn
HCC 2
P36.9Bacterial sepsis of newborn, unspecified
HCC 2

Code Hierarchy

└P36Bacterial sepsis of newborn
└P36Bacterial sepsis of newborn

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