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Diagnosis Code

O21.9 VOMITING OF PREGNANCY, UNSPECIFIED


Code Information

Diagnosis Code: O21.9

Short Description: Vomiting of pregnancy, unspecified

Long Description: Vomiting of pregnancy, unspecified

The code O21.9 is VALID for claim submission

Code Classification:

  • Pregnancy, childbirth and the puerperium (O00-O9A)
    • Other maternal disorders predominantly related to pregnancy (O20-O29)
      • Excessive vomiting in pregnancy (O21)
        • O21.9 Vomiting of pregnancy, unspecified

This code is valid for maternity diagnoses

Code Version: 2022 ICD-10-CM


Synonyms

  • Hypertension AND/OR vomiting complicating pregnancy childbirth AND/OR puerperium
  • Morning sickness
  • Vomiting of pregnancy

Diagnostic Related Group(s)

The code O21.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Other Antepartum Diagnoses With O.r. Procedures With Mcc (817)
  • Other Antepartum Diagnoses With O.r. Procedures With Cc (818)
  • Other Antepartum Diagnoses With O.r. Procedures Without Cc/mcc (819)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
O21.9 Right Arrow 643.93 Vomit of pg NOS-antepart

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
O21 Excessive vomiting in pregnancy
O21.0 Mild hyperemesis gravidarum
O21.1 Hyperemesis gravidarum with metabolic disturbance
O21.2 Late vomiting of pregnancy
O21.8 Other vomiting complicating pregnancy

This page was last updated on: 10/1/2023

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