Emergency: 119
AMDA-IMIC

O13 Gestational [pregnancy-induced] hypertension without significant proteinuria

Category / Non-billable header 6 subcodes

Block: Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)

Includes

  • gestational hypertension NOS
  • transient hypertension of pregnancy

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
O13..1 Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester Yes
O13..2 Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester Yes
O13..3 Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester Yes
O13..4 Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth Yes
O13..5 Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium Yes
O13..9 Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester Yes

Last reviewed: September 2026