P08.22

Prolonged gestation of newborn

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 5 never code together

Excludes2

congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
neoplasms (C00-D49)C00-D49
tetanus neonatorum (A33)A33

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 6

Inclusion terms

Newborn with gestation period over 42 completed weeks (294 days or more), not heavy- or large-for-dates.
Postmaturity NOS

P08code

Notes

When both birth weight and gestational age of the newborn are available, priority of assignment should be given to birth weight

Includes

the listed conditions, without further specification, as causes of morbidity or additional care, in newborn

Notes

Codes from this chapter are for use on newborn records only, never on maternal records

Includes

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

Index entries leading here 3

Prolonged, prolongation (of)
- gestation (over 42 completed weeks)
  - newborn P08.22
Postmaturity, postmature (over 42 weeks)
- newborn P08.22
Newborn (infant) (liveborn) (singleton) Z38.2
- prolonged gestation (over 42 completed weeks) P08.22

Alongside this code 1 same parent — P08.2

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.