Specific code 2009 ICD-9-CM Diagnosis Code 642.03
Antepartum benign essential hypertension
  • Short description: ESSEN HYPERTEN-ANTEPART.
  • ICD-9-CM 642.03 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 642.03 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 2009 version of ICD-9-CM 642.03.
  • More recent version(s) of ICD-9-CM 642.03: 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 642.03 converts approximately to:
  • 2015/16 ICD-10-CM O10.011 Pre-existing essential hypertension complicating pregnancy, first trimester
    Or:
  • 2015/16 ICD-10-CM O10.012 Pre-existing essential hypertension complicating pregnancy, second trimester
    Or:
  • 2015/16 ICD-10-CM O10.013 Pre-existing essential hypertension complicating pregnancy, third trimester
    Or:
  • 2015/16 ICD-10-CM O10.911 Unspecified pre-existing hypertension complicating pregnancy, first trimester
    Or:
  • 2015/16 ICD-10-CM O10.912 Unspecified pre-existing hypertension complicating pregnancy, second trimester
    Or:
  • 2015/16 ICD-10-CM O10.913 Unspecified pre-existing hypertension complicating pregnancy, third trimester
Approximate Synonyms
  • Benign essential HTN, chronic, antepartum
  • Benign essential hypertension complicating pregnancy, childbirth and the puerperium - not delivered
  • Benign essential hypertension, during pregnancy
  • Preexisting HTN in pregnancy
  • Preexisting hypertension in pregnancy
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 642.03 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 2009 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.