Specific code 2010 ICD-9-CM Diagnosis Code 642.33
Antepartum transient hypertension
  • Short description: Trans hyperten-antepart.
  • ICD-9-CM 642.33 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 642.33 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2010 version of ICD-9-CM 642.33.
  • More recent version(s) of ICD-9-CM 642.33: 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 642.33 converts approximately to:
  • 2015/16 ICD-10-CM O13.1 Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
    Or:
  • 2015/16 ICD-10-CM O13.2 Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
    Or:
  • 2015/16 ICD-10-CM O13.3 Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
    Or:
  • 2015/16 ICD-10-CM O16.1 Unspecified maternal hypertension, first trimester
    Or:
  • 2015/16 ICD-10-CM O16.2 Unspecified maternal hypertension, second trimester
    Or:
  • 2015/16 ICD-10-CM O16.3 Unspecified maternal hypertension, third trimester
Approximate Synonyms
  • Gestational HTN, antepartum
  • Gestational hypertension in pregnancy
  • Transient hypertension of pregnancy - not delivered
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 642.33 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2010 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.