ICD-10-CM › I00-I99 › I60-I69 › I67 Other cerebrovascular diseases › I67.4
Hypertensive encephalopathy
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Hypertensive encephalopathy
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from I67 Other cerebrovascular diseases
Excludes1 - never coded here
- Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-)
- Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)
Excludes2 - not included here
- sequelae of the listed conditions (I69.8)
Inherited from the I60-I69 section Cerebrovascular diseases (I60-I69)
Excludes1 - never coded here
- traumatic intracranial hemorrhage (S06.-)
Use additional code
- code to identify presence of:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- history of tobacco dependence (Z87.891)
- hypertension (I10-I1A)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- htn
- high bp
- Labor
- Raised
- Childbirth
- Parturition
- Accouchement
- Lesion > cerebral
- Leukoencephalopathy
- Presentation, fetal
- Hypertensive urgency
- Delivery > obstructed
- High > blood pressure
- Lesion > intracerebral
- Toxemia > of pregnancy
- Urgency > hypertensive
- Blood > pressure > high
- High > arterial tension
- Toxemia > pre-eclamptic
- Hyperpiesis, hyperpiesia
- Tension > arterial, high
- Proteinuria > pre-eclamptic
- Birth > complications in mother
- Disease, diseased > hypertensive
- Delivery > complicated > by > tear
- Elevated, elevation > blood pressure
- Puerperal, puerperium > pre-eclampsia
- Delivery > complicated > by > bleeding
- Albuminuria, albuminuric > pre-eclamptic
- Delivery > complicated > by > perforation
- Pregnancy > complicated by > hypertension
- Delivery > complicated > by > metrorrhexis
- Disease, diseased > vascular > hypertensive
- Obstruction, obstructed, obstructive > labor
- Delivery > complicated > by > disruptio uteri
- Pre-eclampsia > with pre-existing hypertension
- Pregnancy > complicated by > presentation, fetal
- Degeneration, degenerative > vascular > hypertensive
- Delivery > complicated > by > hypertension, hypertensive
- Test, tests, testing > blood pressure > abnormal reading
Showing 40 of 54 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| I67.0 | Dissection of cerebral arteries, nonruptured | Valid |
| I67.1 | Cerebral aneurysm, nonruptured | Valid |
| I67.2 | Cerebral atherosclerosis | Valid |
| I67.3 | Progressive vascular leukoencephalopathy | Valid |
| I67.5 | Moyamoya disease | Valid |
| I67.6 | Nonpyogenic thrombosis of intracranial venous system | Valid |
| I67.7 | Cerebral arteritis, not elsewhere classified | Valid |
| I67.8 | Other specified cerebrovascular diseases | Not billable |
| I67.9 | Cerebrovascular disease, unspecified | Valid |