I10-I1A: Hypertensive diseases

ICD-10-CM 2027 block I10-I1A in chapter 9 (Diseases of the circulatory system) has 7 categories.

Block notes

Excludes1 (not coded here):
  • neonatal hypertension (P29.2)
  • primary pulmonary hypertension (I27.0)
Excludes2 (not included here):
  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
Use additional code:
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)