Infections specific to the perinatal period (P35-P39) ICD-10-CM
The P35–P39 section covers infections specific to the perinatal period with 41 ICD-10-CM diagnosis codes, of which 34 are billable in fiscal year 2027. The section is organized into the 5 code ranges listed below.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Infections acquired in utero, during birth via the umbilicus, or during the first 28 days after birth
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- asymptomatic human immunodeficiency virus [HIV] infection status Z21
- congenital gonococcal infection A54
- congenital pneumonia P23
- congenital syphilis A50
- human immunodeficiency virus [HIV] disease B20
- infant botulism A48.51
- infectious diseases not specific to the perinatal period A00 B99 J09 J10
- intestinal infectious disease A00 A09
- laboratory evidence of human immunodeficiency virus [HIV] R75
- tetanus neonatorum A33
Code Ranges in This Section 5 ranges · 41 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the P35–P39 Code Range
These infections affect newborns or begin before birth. The categories separate viral infections, bacterial sepsis, other infectious or parasitic diseases, belly button infection, and other perinatal infections.
P35 separates congenital viral diseases by the virus or disease named. P36 separates bacterial sepsis in newborns by the bacteria named. P37 groups other congenital infectious and parasitic diseases, such as tuberculosis and malaria.
P38 describes omphalitis, an infection of a newborn's belly button, with or without mild bleeding. P39 includes infections of the breast, eyes, urinary tract, and skin, along with intra-amniotic infection affecting the newborn.
Questions About This Page
How many codes are in the P35-P39 range?
The P35-P39 range contains 41 ICD-10-CM diagnosis codes in FY 2027. 34 of them are billable, and the rest are category headers that organize the section.
What conditions does P35-P39 cover?
The range covers infections specific to the perinatal period. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
