Bacterial sepsis of newborn (P36) ICD-10-CM
The P36 code range covers bacterial sepsis of newborn with 13 ICD-10-CM diagnosis codes. 10 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- congenital sepsis
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- codes, if applicable, to identify severe sepsis R65.2
Codes in the P36 Range 13 codes · 10 billable
- P36 Bacterial sepsis of newbornNon-billable
- P36.0 Sepsis of newborn due to streptococcus, group B
- P36.1 Sepsis of newborn due to other and unspecified streptococciNon-billable
- P36.10 Sepsis of newborn due to unspecified streptococci
- P36.19 Sepsis of newborn due to other streptococci
- P36.2 Sepsis of newborn due to Staphylococcus aureus
- P36.3 Sepsis of newborn due to other and unspecified staphylococciNon-billable
- P36.30 Sepsis of newborn due to unspecified staphylococci
- P36.39 Sepsis of newborn due to other staphylococci
- P36.4 Sepsis of newborn due to Escherichia coli
- P36.5 Sepsis of newborn due to anaerobes
- P36.8 Other bacterial sepsis of newborn
- P36.9 Bacterial sepsis of newborn, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the P36 range.
Acute Lung Injury
A condition of lung damage that is characterized by bilateral pulmonary infiltrates (PULMONARY EDEMA) rich in NEUTROPHILS, and in the absence of clinical HEART FAILURE. This can represent a spectrum of pulmonary lesions, endothelial and epithelial, due to numerous factors (physical, chemical, or biological).
Burkholderia
A genus of gram-negative, aerobic, rod-shaped bacteria originally classified as members of the PSEUDOMONADACEAE.
Burkholderia Infections
Infections with bacteria of the genus BURKHOLDERIA.
Lemierre Syndrome
A superinfection of the damaged oropharyngeal mucosa by FUSOBACTERIUM NECROPHORUM leading to the secondary septic THROMBOPHLEBITIS of the internal jugular vein.
Neonatal Sepsis
Blood infection that occurs in an infant younger than 90 days old. Early-onset sepsis is seen in the first week of life and most often appears within 24 hours of birth. Late-onset occurs after 1 week and before 3 months of age.
Pregnancy Complications, Infectious
The co-occurrence of pregnancy and an INFECTION. The infection may precede or follow FERTILIZATION.
Puerperal Infection
An infection occurring in PUERPERIUM, the period of 6-8 weeks after giving birth.
Sepsis
Systemic inflammatory response syndrome with a proven or suspected infectious etiology. When sepsis is associated with organ dysfunction distant from the site of infection, it is called severe sepsis. When sepsis is accompanied by HYPOTENSION despite adequate fluid infusion, it is called SEPTIC SHOCK.
Sepsis-Associated Encephalopathy
Acute neurological dysfunction during severe SEPSIS in the absence of direct brain infection characterized by systemic inflammation and BLOOD BRAIN BARRIER perturbation.
Systemic Inflammatory Response Syndrome
A systemic inflammatory response to a variety of clinical insults, characterized by two or more of the following conditions: (1) fever >38 degrees C or HYPOTHERMIA <36 degrees C; (2) TACHYCARDIA >90 beat/minute; (3) tachypnea >24 breaths/minute; (4) LEUKOCYTOSIS >12,000 cells/cubic mm or 10% immature forms. While usually related to infection, SIRS can also be associated with noninfectious insults such as TRAUMA; BURNS; or PANCREATITIS. If infection is involved, a patient with SIRS is said to have SEPSIS.
Transfusion-Related Acute Lung Injury
A rare but serious transfusion-related reaction in which fluid builds up in the lungs unrelated to excessively high infusion rate and/or volume (TRANSFUSION-ASSOCIATED CIRCULATORY OVERLOAD). Signs of Transfusion-Related Acute Lung Injury include pulmonary secretions; hypotension; fever; DYSPNEA; TACHYPNEA; TACHYCARDIA; and CYANOSIS.
About the P36 Code Range
The ICD-10 code P36 covers bacterial sepsis in newborns, a serious bloodstream infection occurring during the perinatal period. Each subcode specifies the particular bacterial cause, such as group B streptococcus or Escherichia coli, making these codes essential in correctly identifying the infection source for newborn sepsis.
This section includes codes like P36.0 for sepsis caused by group B streptococcus, also known as early-onset neonatal sepsis, and P36.4 for Escherichia coli sepsis, often called coliform sepsis. Other subcodes detail sepsis due to Staphylococcus aureus (P36.2), anaerobes (P36.5), and unspecified or other streptococci and staphylococci (P36.1, P36.3). The code P36.9 is used when the bacterial cause is unspecified. These synonyms help clarify that terms like neonatal sepsis, perinatal sepsis, septic shock with group B streptococcus, or sepsis caused by aerobic or anaerobic bacteria map to these specific ICD-10 codes, guiding accurate coding and treatment planning.
Questions About This Page
How many billable codes are in the P36 range?
Of the 13 codes in this range, 10 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the P36 range classify?
The range classifies bacterial sepsis of newborn. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
