O48.1

ICD-10Billable

Prolonged pregnancy

Official ICD-10-CM descriptor (FY2026)

Prolonged pregnancy

O48.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Pregnancy which has advanced beyond 42 completed weeks gestation

Related codes in O48

O48.0Post-term pregnancy

Where this code sits

Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
Parent code: O48

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.