I99.9
Billable
ChapterI00–I99
Ranksubcategory
Official Description
Unspecified disorder of circulatory system
Metadata & Insights
- •2026 ICD-10-CM Edition - Effective October 1, 2025.
- •Billable/specific code (valid for reimbursement).
- •Chapter 9: Diseases of the Circulatory System (I00-I99).
General instructions are available for the parent sections:
Clinical Hierarchy
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to I99.9:
Alphabetic Index Mentions
These are Diagnosis Index lookup paths that route to I99.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.
14 raw paths
Angiopathia, angiopathy1 unique routes
Change (s) (in) (of)2 unique routes
Circulation1 unique routes
Complication (s) (from) (of)1 unique routes
Defect, defective2 unique routes
Deficiency, deficient1 unique routes
Disturbance (s)2 unique routes
Lesion (s) (nontraumatic)1 unique routes
MS-DRG Classification
This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:
Cross Reference
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