Congenital viral diseases (P35) ICD-10-CM
The P35 code range covers congenital viral diseases with 8 ICD-10-CM diagnosis codes. 7 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.
- infections acquired in utero or during birth
Codes in the P35 Range 8 codes · 7 billable
- P35 Congenital viral diseasesNon-billable
- P35.0 Congenital rubella syndrome
- P35.1 Congenital cytomegalovirus infection
- P35.2 Congenital herpesviral [herpes simplex] infection
- P35.3 Congenital viral hepatitis
- P35.4 Congenital Zika virus disease
- P35.8 Other congenital viral diseases
- P35.9 Congenital viral disease, unspecified
About the P35 Code Range
The ICD-10 codes P35 through P35.9 specifically categorize congenital viral diseases, which are infections present at birth caused by viruses transmitted from mother to infant. These codes allow healthcare providers to accurately document and identify specific viral conditions affecting newborns.
The section includes detailed codes for conditions such as congenital rubella syndrome (P35.0), also known by terms like rubella pneumonia or rubella encephalitis, which helps differentiate rubella-related birth defects. Congenital cytomegalovirus infection (P35.1) covers infections referred to as chronic congenital cytomegalic inclusion disease. Codes like P35.2 identify congenital herpes simplex infections, sometimes called perinatal herpes simplex. The section also includes codes for congenital viral hepatitis (P35.3) relating to hepatitis A, B, or C transmitted at birth, and congenital Zika virus disease (P35.4). Other less common viral infections are grouped under P35.8, while P35.9 is used when the congenital viral disease is unspecified. This categorization supports precise coding for newborn viral infections and related perinatal complications.
Questions About This Page
How many billable codes are in the P35 range?
Of the 8 codes in this range, 7 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 P35 range classify?
The range classifies congenital viral diseases. 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.
