Alphabetic Index FY2027

P39

Other infections specific to the perinatal period

FY2027Chapter 16: Certain conditions originating in the perinatal period/P35–P39 Infections specific to the perinatal period

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

P39 is a non-billable ICD-10-CM code category for other infections specific to the perinatal period. 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 P39.0 Neonatal infective mastitis; P39.1 Neonatal conjunctivitis and dacryocystitis; P39.2 Intra-amniotic infection affecting newborn, not elsewhere classified; P39.3 Neonatal urinary tract infection and 3 more. Its coding notes include a Use additional code instruction and 15 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

Use additional code

Add the listed code as a secondary code, if known.

This code
  • code to identify organism or specific infection

Excludes2

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

Also from chapter/block level (15 notes)
Inherited from P35–P39 Infections specific to the perinatal period
  • asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
  • congenital gonococcal infection (A54.-)
  • congenital pneumonia (P23.-)
  • congenital syphilis (A50.-)
  • human immunodeficiency virus [HIV] disease (B20)
  • infant botulism (A48.51)
  • infectious diseases not specific to the perinatal period (A00-B99, J09, J10.-)
  • intestinal infectious disease (A00-A09)
  • laboratory evidence of human immunodeficiency virus [HIV] (R75)
  • tetanus neonatorum (A33)
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.

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 P39 7