Congenital pneumonia (P23) ICD-10-CM
The P23 code range covers congenital pneumonia with 10 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- infective pneumonia acquired in utero or during birth
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- neonatal pneumonia resulting from aspiration P24
Codes in the P23 Range 10 codes · 9 billable
- P23 Congenital pneumoniaNon-billable
- P23.0 Congenital pneumonia due to viral agent
- P23.1 Congenital pneumonia due to Chlamydia
- P23.2 Congenital pneumonia due to staphylococcus
- P23.3 Congenital pneumonia due to streptococcus, group B
- P23.4 Congenital pneumonia due to Escherichia coli
- P23.5 Congenital pneumonia due to Pseudomonas
- P23.6 Congenital pneumonia due to other bacterial agents
- P23.8 Congenital pneumonia due to other organisms
- P23.9 Congenital pneumonia, unspecified
About the P23 Code Range
Congenital pneumonia appears among breathing and heart or blood vessel disorders specific to the period around birth.
The subdivisions distinguish the organism named as the cause. P23.0 names a viral agent, while P23.1 names Chlamydia. Separate codes name staphylococcus, group B streptococcus, Escherichia coli, and Pseudomonas. P23.6 covers other bacterial agents, P23.8 covers other organisms, and P23.9 leaves the cause unspecified.
Questions About This Page
How many billable codes are in the P23 range?
Of the 10 codes in this range, 9 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the P23 range classify?
The range classifies congenital pneumonia. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
