P59.1 Inspissated bile syndrome

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applies from P59 Neonatal jaundice from other and unspecified causes

Excludes1 (never code together)

• jaundice due to inborn errors of metabolism (E70-E88)
• kernicterus (P57.-)

MS-DRG index

Defines the logic of DRG(s) 791 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 774.4 Perinatal jaundice due to hepatocellular damage (approximate)

Code annotations containing back-references to P59.1

Back-references to P59

• Type 1 Excludes: K72 Hepatic failure, not elsewhere classified ("icterus of newborn (P55-P59)")
• Code Also: K76.82 Hepatic encephalopathy ("icterus of newborn (P55-P59)")
• Type 1 Excludes: R17 Unspecified jaundice ("neonatal jaundice (P55, P57-P59)")

Diagnosis Index entries for P59.1

• Inspissated bile syndrome (newborn)
• Jaundice (yellow) › newborn › due to or associated with › inspissated bile syndrome
• Syndrome › inspissated bile (newborn)

Nearby codes

• P59 Neonatal jaundice from other and unspecified causes
• P59.0 Neonatal jaundice associated with preterm delivery
• P59.1 Inspissated bile syndrome (this code)
• P59.2 Neonatal jaundice from other and unspecified hepatocellular damage
• P59.20 Neonatal jaundice from unspecified hepatocellular damage
• P59.29 Neonatal jaundice from other hepatocellular damage
• P59.3 Neonatal jaundice from breast milk inhibitor
• P59.8 Neonatal jaundice from other specified causes