P23 — Congenital pneumonia

Not billable

Is P23 billable?

No — P23 is a non-billable header code. P23 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 9 billable codes beneath P23.

Billable codes under this header

P23 at a glance

Code	P23
Description	Congenital pneumonia
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with P23 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

neonatal pneumonia resulting from aspiration (P24.-)

Includes

Conditions classified to P23.

infective pneumonia acquired in utero or during birth

Excludes2 — not included here — inherited from Chapter 16

The conditions below are not part of P23, but a patient may have both at the same time. When documentation supports it, P23 and the excluded code may both be reported.

congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
tetanus neonatorum (A33)

What codes fall under P23? (9)

How long has P23 existed?

P23 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.