P23
ICD-10Non-billable categoryCongenital pneumonia
Official ICD-10-CM descriptor (FY2026)
Congenital pneumonia
P23 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- infective pneumonia acquired in utero or during birth
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- neonatal pneumonia resulting from aspiration (P24.-)
More specific codes under P23
- P23.0Congenital pneumonia due to viral agent
- P23.1Congenital pneumonia due to Chlamydia
- P23.2Congenital pneumonia due to staphylococcus
- P23.3Congenital pneumonia due to streptococcus, group B
- P23.4Congenital pneumonia due to Escherichia coli
- P23.5Congenital pneumonia due to Pseudomonas
- P23.6Congenital pneumonia due to other bacterial agents
- P23.8Congenital pneumonia due to other organisms
- P23.9Congenital pneumonia, unspecified
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.