U.S. ICD-10-CM · FY 2027

P23 ICD-10-CM Code: Congenital pneumonia

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

P23

Congenital pneumonia

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where P23 sits

  1. 1

    Chapter 16

    Certain conditions originating in the perinatal period (P00-P96)

  2. 2

    Section

    Respiratory and cardiovascular disorders specific to the perinatal period (P19-P29)

  3. 3

    Category P23

    Congenital pneumonia

  4. 4

    Code P23

    Congenital pneumonia

More specific choices

Codes under P23

P23 is a non-billable category. Choose the child code that best matches the documented diagnosis.

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

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for P23.

Code first

No “code first” instruction is listed for P23.

Use additional code

No “use additional code” instruction is listed for P23.

Excludes1

Conditions that should not be reported together with this code.

  • neonatal pneumonia resulting from aspiration (P24.-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for P23.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code P23 mean?

P23 is the FY 2027 U.S. ICD-10-CM code for “Congenital pneumonia.”

Is P23 a billable or specific ICD-10-CM code?

No. P23 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is P23 located in ICD-10-CM?

P23 is listed in Chapter 16, Certain conditions originating in the perinatal period (P00-P96), within Respiratory and cardiovascular disorders specific to the perinatal period (P19-P29) (P19–P29), under category P23, Congenital pneumonia.

What coding notes are listed for P23?

No inclusion terms are listed for P23 in this reference record. No code-first instruction is listed. Excludes1 notes: neonatal pneumonia resulting from aspiration (P24.-). No Excludes2 note is listed.

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