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2009 ICD-9-CM Diagnosis Code 401.9
Unspecified essential hypertension
  
  • 401.9 is a billable ICD-9-CM medical code that can be used to specify a diagnosis on a reimbursement claim.
  • Newer versions of 401.9: 2010
Diagnosis Definition(s)Click to expand
ICD-9-CM Volume 2 Index Entries That Refer To 401.9Click to expand