O48.1

✓ Billable

Prolonged pregnancy

Pregnancy, childbirth and the puerperium (O00-O9A)

Also Known As

Pregnancy which has advanced beyond 42 completed weeks gestation

✓ No additional coding notes for O48.1

Clinical Description

ICD-10-CM code O48.1 represents prolonged pregnancy. This code falls under the Pregnancy, childbirth and the puerperium (O00-O9A) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 5-character code at the 4th level of specificity. This is the most specific code available in this subcategory.

Frequently Asked Questions

What is ICD-10 code O48.1?

ICD-10-CM code O48.1 is "Prolonged pregnancy". It belongs to the category: Pregnancy, childbirth and the puerperium (O00-O9A).

Is O48.1 a billable ICD-10 code?

Yes, O48.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Related Codes in O48

Other codes in the same category that may be relevant for differential coding:

O48.0Post-term pregnancy

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Code Information

CodeO48.1

BillableYes

ParentO48

CategoryPregnancy, childbirth and the puerperium (O00-O9A)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)