I10-I1A

Non-Billable
ChapterI00–I99
Rankblock
Official Description

Hypertensive diseases (I10-I1A)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Instructional 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)

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)
I10-I1AHypertensive diseases (I10-I1A)
I10Essential (primary) hypertension
I11Hypertensive heart disease
I12Hypertensive chronic kidney disease
I13Hypertensive heart and chronic kidney disease
I15Secondary hypertension
I16Hypertensive crisis
I1AOther hypertension

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I10-I1A:

chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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