Alphabetic Index FY2027

P23

Congenital pneumonia

FY2027Chapter 16: Certain conditions originating in the perinatal period/P19–P29 Respiratory and cardiovascular disorders specific to the perinatal period

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

P23 is a non-billable ICD-10-CM code category for congenital pneumonia. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are 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 and 5 more. Its coding notes include 1 Excludes1 entry and 5 Excludes2 entries.

Guidelines tip

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

Chapter 16 codes are never used on the maternal record, and chapter 15 codes are never used on the newborn record. Chapter 16 codes can be used for life if the condition persists.

Guidelines I.C.16.a.1Perinatal codes and the maternal recordRead the official text

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • neonatal pneumonia resulting from aspiration (P24.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (5 notes)
Inherited from Chapter 16 Certain conditions originating in the perinatal period
  • 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)

Includes

Further defines or gives examples of the content of the category.

This code
  • infective pneumonia acquired in utero or during birth
Also from chapter/block level (1 note)
Inherited from Chapter 16 Certain conditions originating in the perinatal period
  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 16 Certain conditions originating in the perinatal period
  • Codes from this chapter are for use on newborn records only, never on maternal records

More specific codes under P23 9