P23.1
✓ Billable
Congenital pneumonia due to Chlamydia
ICD-10-CM · FY2026 · Certain Conditions Originating in the Perinatal Period
Code
P23.1
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Certain Conditions Originating in the Perinatal Period
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code P23.1?
ICD-10-CM code P23.1 represents Congenital pneumonia due to Chlamydia. It is a billable diagnosis code in the Certain Conditions Originating in the Perinatal Period chapter, effective October 1, 2025 – September 30, 2026.
Is P23.1 billable?
Yes. P23.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is P23.1 in?
P23.1 belongs to the Certain Conditions Originating in the Perinatal Period chapter (P00–P96) of ICD-10-CM.
Related codes in the P23 category
P23
Congenital pneumonia
Non-billable
P23.0
Congenital pneumonia due to viral agent
Billable
P23.2
Congenital pneumonia due to staphylococcus
Billable
P23.3
Congenital pneumonia due to streptococcus, group B
Billable
P23.4
Congenital pneumonia due to Escherichia coli
Billable
P23.5
Congenital pneumonia due to Pseudomonas
Billable
P23.6
Congenital pneumonia due to other bacterial agents
Billable
P23.8
Congenital pneumonia due to other organisms
Billable
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