P28.40 is the authoritative medical code for Unspecified apnea of newborn. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified apnea of newborn (ICD-10-CM P28.40), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Unspecified apnea of newborn is a billable ICD-10-CM diagnosis code P28.40. Inclusion terms: Apnea of newborn, NOS; Transient oxygen desaturation spells of newborn. Excludes2 (not included here): primary sleep apnea of newborn P28.3-. Code also: , if applicable, congenital malformations of the respiratory system Q30-Q34.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for P28.40 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Apnea of newborn, NOS
- Transient oxygen desaturation spells of newborn
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- primary sleep apnea of newborn P28.3-
Code Also
Additional codes that may be required to fully describe the encounter.
- , if applicable, congenital malformations of the respiratory system Q30-Q34
Frequently Asked Questions (FAQ) & Clinical Guidance
Can P28.40 be reported alongside related conditions?
Per Excludes2 instructions, P28.40 and the following may both be reported when both are present: primary sleep apnea of newborn (P28.3-).
What conditions are included under P28.40?
Unspecified apnea of newborn includes: Apnea of newborn, NOS; Transient oxygen desaturation spells of newborn.
Codes in This Family (23)
Official ICD-10-CM classifications in the same code family as P28.40, with their registry titles.
- P28 — Other respiratory conditions originating in the perinatal period
- P28.0 — Primary atelectasis of newborn
- P28.1 — Other and unspecified atelectasis of newborn
- P28.10 — Unspecified atelectasis of newborn
- P28.11 — Resorption atelectasis without respiratory distress syndrome
- P28.19 — Other atelectasis of newborn
- 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
- P28.39 — Other primary sleep apnea of newborn
- P28.4 — Other apnea of newborn
- P28.41 — Central neonatal apnea of newborn
- P28.42 — Obstructive apnea of newborn
- P28.43 — Mixed neonatal apnea of newborn
- P28.49 — Other apnea of newborn
- P28.5 — Respiratory failure of newborn
- P28.8 — Other specified respiratory conditions of newborn
- P28.81 — Respiratory arrest of newborn
- P28.89 — Other specified respiratory conditions of newborn
- P28.9 — Respiratory condition of newborn, unspecified
Indexed Clinical Terms (3)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Apnea, apneic (of) (spells), newborn
- Newborn (infant) (liveborn) (singleton), apnea
- Spells, transient oxygen desaturation of newborn
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: