P23 ICD-10-CM Code: Congenital pneumonia
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
P23Congenital pneumonia
ICD-10-CM diagnosis code · United States clinical modification
Where P23 sits
- 1
Chapter 16
Certain conditions originating in the perinatal period (P00-P96)
- 2
Section
Respiratory and cardiovascular disorders specific to the perinatal period (P19-P29)
- 3
Category P23
Congenital pneumonia
- 4
Code P23
Congenital pneumonia
Codes under P23
P23 is a non-billable category. Choose the child code that best matches the documented diagnosis.
P23.0Congenital pneumonia due to viral agentP23.1Congenital pneumonia due to ChlamydiaP23.2Congenital pneumonia due to staphylococcusP23.3Congenital pneumonia due to streptococcus, group BP23.4Congenital pneumonia due to Escherichia coliP23.5Congenital pneumonia due to PseudomonasP23.6Congenital pneumonia due to other bacterial agentsP23.8Congenital pneumonia due to other organismsP23.9Congenital pneumonia, unspecifiedNotes for this code
Inclusion terms
No inclusion terms are listed for P23.
Code first
No “code first” instruction is listed for P23.
Use additional code
No “use additional code” instruction is listed for P23.
Excludes1
Conditions that should not be reported together with this code.
- neonatal pneumonia resulting from aspiration (P24.-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for P23.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code P23 mean?
P23 is the FY 2027 U.S. ICD-10-CM code for “Congenital pneumonia.”
Is P23 a billable or specific ICD-10-CM code?
No. P23 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is P23 located in ICD-10-CM?
P23 is listed in Chapter 16, Certain conditions originating in the perinatal period (P00-P96), within Respiratory and cardiovascular disorders specific to the perinatal period (P19-P29) (P19–P29), under category P23, Congenital pneumonia.
What coding notes are listed for P23?
No inclusion terms are listed for P23 in this reference record. No code-first instruction is listed. Excludes1 notes: neonatal pneumonia resulting from aspiration (P24.-). No Excludes2 note is listed.