2026 ICD-10-CM Diagnosis Code I67.3Progressive vascular leukoencephalopathy
ICD-10-CM Codes›I00–I99›I60-I69›I67
- Billable — Valid for Submission
- Chronic Condition
I67.3 is a billable ICD-10-CM diagnosis code for progressive vascular leukoencephalopathy. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 974 through 976. Coders also document this condition as pontine autosomal dominant microangiopathy with leukoencephalopathy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other and ill-defined cerebrovascular disease and Other nervous system disorders (neither hereditary nor degenerative).
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Pontine autosomal dominant microangiopathy with leukoencephalopathy
- Small vessel cerebrovascular disease
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Binswanger's disease
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Binswanger's disease - I67.3
- Leukoencephalopathy - See Also: Encephalopathy; - G93.49
- Binswanger's - I67.3
- vascular, progressive - I67.3
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Binswanger's disease
- Leukoencephalopathy
- Binswanger's
- Leukoencephalopathy
- vascular, progressive
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Brain Diseases
Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert I67.3 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About I67.3Overview
Is I67.3 (Other cerebrovascular diseases) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report progressive vascular leukoencephalopathy on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does I67.3 group to?
When progressive vascular leukoencephalopathy is the principal diagnosis on an inpatient stay, it groups to MS-DRG 974, 975, 976, with relative weights from 0.8945 to 2.8860 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of I67.3?
Under the General Equivalence Mappings, progressive vascular leukoencephalopathy converts to ICD-9-CM 046.3 (prog multifoc leukoencep). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
