All ICD10 Codes

O26.01

Billable
ChapterO00–O9A
Ranksubcategory
Official Description

Excessive weight gain in pregnancy, first trimester

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).
General instructions are available for the parent sections:
View CH15 NotesView O20-O29 NotesView O26.0 Notes

Clinical Hierarchy

CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O20-O29Other maternal disorders predominantly related to pregnancy (O20-O29)
O26Maternal care for other conditions predominantly related to pregnancy
O26.0Excessive weight gain in pregnancy
O26.01Excessive weight gain in pregnancy, first trimester

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O26.01:

subcategoryO26.0
Excessive weight gain in pregnancy
View context instructions
blockO20-O29
Other maternal disorders predominantly related to pregnancy (O20-O29)
View context instructions
chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
View context instructions

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 817
Other Antepartum Diagnoses with O.R. Procedures with MCC
DRG 818
Other Antepartum Diagnoses with O.R. Procedures with CC
DRG 819
Other Antepartum Diagnoses with O.R. Procedures without CC/MCC
DRG 831
Other Antepartum Diagnoses without O.R. Procedures with MCC
DRG 832
Other Antepartum Diagnoses without O.R. Procedures with CC
DRG 833
Other Antepartum Diagnoses without O.R. Procedures without CC/MCC

Cross Reference

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