P23.1 – Congenital pneumonia due to Chlamydia
ICD-10-CM 2027 diagnosis code · Respiratory and cardiovascular disorders specific to the perinatal period
- Code
P23.1(claims format:P231)- Description
- Congenital pneumonia due to Chlamydia
- 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
- infective pneumonia acquired in utero or during birth
- neonatal pneumonia resulting from aspiration (P24.-)
Index terms for P23.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in P23
- P23.0 – Congenital pneumonia due to viral agentBillable
- 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
Frequently asked questions
What is ICD-10 code P23.1?
P23.1 is the ICD-10-CM code for congenital pneumonia due to Chlamydia, in the block P19-P29 (Respiratory and cardiovascular disorders specific to the perinatal period).
Is P23.1 a billable code?
Yes. P23.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does P23.1 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.