Back to ICD-10 codes
P23ICD-10-CM

Chapter 16 · P00–P96 · Perinatal Period Conditions

Congenital pneumonia

P23 is the ICD10 code used for documenting Congenital pneumonia in the neonatal period.

What P23 covers · when clinicians use it

ICD-10 code P23 identifies Congenital pneumonia in the U.S. ICD-10-CM clinical and billing record set. It sits within the Perinatal Period Conditions chapter (P00–P96), the section that groups related diagnoses so providers, payers, and public-health agencies report them consistently. Clinicians and medical coders apply P23 when an encounter's findings match the Congenital pneumonia description, attaching it to the patient record so downstream insurance claims, payer audits, quality reporting, and epidemiological surveillance all reference the same standardized diagnosis. The ICD-10-CM is maintained by the Centers for Medicare & Medicaid Services and the CDC's National Center for Health Statistics, with an updated official code set released each U.S. fiscal year — always verify P23 against the current CMS/CDC release and your payer's documentation guidance before final use. This page summarizes documentation context for P23 and is a coding reference, not clinical, diagnostic, or billing advice.

P23 refers to Congenital pneumonia, capturing critical respiratory and cardiovascular conditions that originate during the newborn period, often requiring urgent medical interventions and NICU care.

Symptoms

  • Rapid breathing or grunting – Indicators of respiratory distress (P22)
  • Cough, fever, and respiratory distress – Signs of congenital pneumonia (P23)
  • Meconium-stained amniotic fluid – Leading to neonatal aspiration (P24)
  • Air leaks in lungs – Interstitial emphysema (P25)
  • Blood in airways – Pulmonary hemorrhage (P26)
  • Persistent oxygen need – Chronic lung disease of prematurity (P27)
  • Abnormal heart rhythms or murmurs – Cardiovascular disorders in newborns (P29)

Diagnosis

Diagnosis of Congenital pneumonia includes clinical examination, blood gas analysis, chest X-ray, echocardiography, oxygen saturation monitoring, and advanced imaging when needed to identify respiratory or cardiovascular compromise in the neonatal period.

ICD10 Code Usage

ICD10 code P23 is crucial for NICU teams, neonatologists, and pediatric cardiologists to document respiratory or cardiovascular dysfunctions accurately, supporting interventions like mechanical ventilation, surfactant therapy, or ECMO if necessary.

Related Codes

FAQs

Q1: What is ICD10 code P23?
A: It refers to Congenital pneumonia, encompassing serious breathing and heart-related complications arising in newborns during or shortly after birth.

Q2: How is respiratory distress (P22) treated in newborns?
A: Treatment may include oxygen therapy, CPAP, mechanical ventilation, and surfactant administration for lung immaturity.

Q3: What causes neonatal pulmonary hemorrhage (P26)?
A: Causes include prematurity, infection, birth trauma, or surfactant deficiency leading to fragile pulmonary vessels.

Q4: How is congenital pneumonia (P23) diagnosed?
A: Diagnosis combines clinical signs (fever, tachypnea) with chest X-rays and sometimes positive blood cultures or tracheal aspirate analysis.

Q5: Can newborns recover from chronic respiratory disease (P27)?
A: Many improve with growth and pulmonary development, although some may have lasting respiratory issues like asthma or bronchopulmonary dysplasia (BPD).

Conclusion

ICD10 code P23 enables healthcare teams to systematically document Congenital pneumonia, ensuring timely diagnosis, critical care interventions, and better long-term respiratory and cardiac outcomes for neonates.

Source: ICD-10-CM (CMS / CDC NCHS official code set)

Last reviewed:

This page is a documentation reference for the ICD-10-CM code set and is not clinical, diagnostic, or billing advice. Always verify codes against the official ICD-10-CM source and your payer's guidelines.

Stop searching codes. Start delivering care.

Augustun captures the visit, drafts the note, and proposes ICD-10 codes with rationale — trusted by 10,000+ clinicians.