ICD10BillableValid for clinical use

ICD-10 Code O26.841: Uterine size-date discrepancy, first trimester

O26.841 is a billable ICD-10 diagnosis code used to classify Uterine size-date discrepancy, first trimester in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

When is it used?

  • May be used when a clinician documents uterine size-date discrepancy, first trimester in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
15Pregnancy, childbirth and the puerperium (O00-O9A)
block
O20-O29Other maternal disorders predominantly related to pregnancy
category
O26Maternal care for other conditions predominantly related to pregnancy
category
O26.8Other specified pregnancy related conditions
category
O26.84Uterine size-date discrepancy complicating pregnancy
currentO26.84

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

ObstetricianGynecologist

Coding guidelines

Common synonyms

Uterine size-date discrepancy, first trimester

Frequently asked questions

Code details

CodeO26.841
SystemICD10
Display nameUterine size-date discrepancy, first trimester
ChapterPregnancy, childbirth and the puerperium (O00-O9A)
BlockOther maternal disorders predominantly related to pregnancy

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code O26.841 for Uterine size-date discrepancy, first trimester | HealthAssure