O21.1

Hyperemesis gravidarum with metabolic disturbance

Billable / specific

O21.1 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as carbohydrate depletion
Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as dehydration
Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as electrolyte imbalance

Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
Note: Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
Note: 1st trimester- less than 14 weeks 0 days
Note: 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
Note: 3rd trimester- 28 weeks 0 days until delivery

Not coded here — never report together with this code.

Not included here — may be reported together when both conditions exist.

mental and behavioral disorders associated with the puerperium (F53.-) (from O21)
obstetrical tetanus (A34) (from O21)
postpartum necrosis of pituitary gland (E23.0) (from O21)
puerperal osteomalacia (M83.0) (from O21)
maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48) (from O21)
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99) (from O21)

Add a code to identify the following, if applicable.

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known. (from O21)

Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as carbohydrate depletion
Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as dehydration
Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as electrolyte imbalance
Hyperemesis, gravidarum, with carbohydrate depletion
Hyperemesis, gravidarum, with dehydration
Hyperemesis, gravidarum, with electrolyte imbalance
Hyperemesis, gravidarum, with metabolic disturbance
Hyperemesis, gravidarum, severe
Imbalance, electrolyte, due to hyperemesis gravidarum