P28.33 Primary mixed sleep apnea of newborn

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

Applies from P28 Other respiratory conditions originating in the perinatal period

Code also

• , if applicable, congenital malformations of the respiratory system (Q30-Q34)

Applies from P28.3 Primary sleep apnea of newborn

Applicable to

• Sleep apnea of newborn NOS

Excludes2 (not included here)

• other apnea of newborn (P28.4-)

MS-DRG index

Defines the logic of DRG(s) 794 in MDC 15.

Code annotations containing back-references to P28.33

Back-references to P28.3

• Type 1 Excludes: G47.3 Sleep apnea ("sleep apnea of newborn (P28.3-)")
• Type 1 Excludes: G47.33 Obstructive sleep apnea (adult) (pediatric) ("obstructive sleep apnea of newborn (P28.3-)")
• Type 1 Excludes: J98 Other respiratory disorders ("newborn sleep apnea (P28.3-)")
• Type 1 Excludes: P28.2 Cyanotic attacks of newborn ("apnea of newborn (P28.3- - P28.4-)")
• Type 2 Excludes: P28.4 Other apnea of newborn ("primary sleep apnea of newborn (P28.3-)")
• Type 1 Excludes: R06.81 Apnea, not elsewhere classified ("sleep apnea of newborn (primary) (P28.3-)")
• Type 1 Excludes: Z03.83 Encounter for observation for suspected conditions related to home physiologic monitoring device ruled out ("primary sleep apnea of newborn (P28.3-)")
• Type 1 Excludes: Z05.81 Observation and evaluation of newborn for suspected condition related to home physiologic monitoring device ruled out ("primary sleep apnea of newborn (P28.3-)")

Diagnosis Index entries for P28.33

• Apnea, apneic (of) (spells) › newborn › sleep › primary › mixed

Nearby codes

• P28.2 Cyanotic attacks of newborn
• P28.3 Primary sleep apnea of newborn
• P28.30 Primary sleep apnea of newborn, unspecified
• P28.31 Primary central sleep apnea of newborn
• P28.32 Primary obstructive sleep apnea of newborn
• P28.33 Primary mixed sleep apnea of newborn (this code)
• P28.39 Other primary sleep apnea of newborn
• P28.4 Other apnea of newborn
• P28.40 Unspecified apnea of newborn
• P28.41 Central neonatal apnea of newborn
• P28.42 Obstructive apnea of newborn