P23 – Congenital pneumonia
ICD-10-CM 2027 diagnosis code · Respiratory and cardiovascular disorders specific to the perinatal period
ICD-10-CM code
P23
- Code
P23(claims format:P23)- Description
- Congenital pneumonia
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 16. Certain conditions originating in the perinatal period (P00-P96)
- Block
- P19-P29 Respiratory and cardiovascular disorders specific to the perinatal period
Billable codes under P23
P23 is a header code and cannot be used on claims. Choose the most specific code:
- P23.0 – Congenital pneumonia due to viral agentBillable
- P23.1 – Congenital pneumonia due to ChlamydiaBillable
- P23.2 – Congenital pneumonia due to staphylococcusBillable
- P23.3 – Congenital pneumonia due to streptococcus, group BBillable
- P23.4 – Congenital pneumonia due to Escherichia coliBillable
- P23.5 – Congenital pneumonia due to PseudomonasBillable
- P23.6 – Congenital pneumonia due to other bacterial agentsBillable
- P23.8 – Congenital pneumonia due to other organismsBillable
- P23.9 – Congenital pneumonia, unspecifiedBillable
Notes for P23
Includes:
- infective pneumonia acquired in utero or during birth
Excludes1 (not coded here):
- neonatal pneumonia resulting from aspiration (P24.-)
Frequently asked questions
What is ICD-10 code P23?
P23 is the ICD-10-CM code for congenital pneumonia, in the block P19-P29 (Respiratory and cardiovascular disorders specific to the perinatal period).
Is P23 a billable code?
No. P23 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.