Other and unspecified disorders of the circulatory system (I95-I99) ICD-10-CM
The I95–I99 section covers other and unspecified disorders of the circulatory system with 72 ICD-10-CM diagnosis codes, of which 49 are billable in fiscal year 2026. The section is organized into the 4 code ranges listed below.
Code Ranges in This Section 4 ranges · 72 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the I95–I99 Code Range
ICD-10 codes I95-I99 cover a variety of other and unspecified disorders of the circulatory system, including different types of hypotension, gangrene, and complications related to circulatory system procedures. These codes are essential for categorizing conditions not classified elsewhere in the circulatory system chapter.
Specifically, I95 focuses on types of hypotension such as idiopathic hypotension, orthostatic hypotension, drug-induced hypotension, and postprocedural hypotension. Codes like I96 address gangrene not classified elsewhere, encompassing peripheral vascular gangrene and skin necrosis. The I97 series details intraoperative and postprocedural complications of the circulatory system, including postcardiotomy syndrome, cardiac functional disturbances, hemorrhage, lacerations, and postprocedural hypertension. This section also describes various cardiac arrests and heart failures linked to surgery or medical procedures. Finally, I99 captures other and unspecified circulatory disorders such as ischemia of limbs, vascular calcification, and hereditary cardiovascular conditions. These codes help coders and clinicians document complex circulatory conditions and procedural complications accurately, supporting precise diagnosis and treatment tracking.
Questions About This Page
How many codes are in the I95-I99 range?
The I95-I99 range contains 72 ICD-10-CM diagnosis codes in FY 2026. 49 of them are billable, and the rest are category headers that organize the section.
What conditions does I95-I99 cover?
The range covers other and unspecified disorders of the circulatory system. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
