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Free Online ICD-9-CM Diagnosis Codes > 2007 > Diseases Of The Circulatory System 390-459 > Hypertensive Disease 401-405 > Essential hypertension 401.* >
2007 ICD-9-CM Diagnosis Code 401
Essential hypertension
  • hypertension occurring without preexisting renal disease or known organic cause.
2007 ICD-9-CM Diagnosis Code 401.0
Malignant essential hypertension
2007 ICD-9-CM Diagnosis Code 401.1
Benign essential hypertension
2007 ICD-9-CM Diagnosis Code 401.9
Unspecified essential hypertension
  • hypertension occurring without preexisting renal disease or known organic cause.
 
402.*