P23.3 – Congenital pneumonia due to streptococcus, group B

ICD-10-CM 2027 diagnosis code · Respiratory and cardiovascular disorders specific to the perinatal period

Billable code

ICD-10-CM code P23.3

Code: P23.3 (claims format: P233)
Description: Congenital pneumonia due to streptococcus, group B
Billable: Yes – valid for HIPAA-covered transactions
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
Parent codes: P23

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

P23 – Congenital pneumonia

Includes:

infective pneumonia acquired in utero or during birth

Excludes1 (not coded here):

neonatal pneumonia resulting from aspiration (P24.-)

Index terms for P23.3

Entries in the ICD-10-CM alphabetic index that lead to this code:

Pneumonia, congenital, due to, Streptococcus, group B

Related codes in P23

Frequently asked questions

What is ICD-10 code P23.3?

P23.3 is the ICD-10-CM code for congenital pneumonia due to streptococcus, group B, in the block P19-P29 (Respiratory and cardiovascular disorders specific to the perinatal period).

Is P23.3 a billable code?

Yes. P23.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does P23.3 belong to?

It belongs to category P23 – Congenital pneumonia.

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.