I99 Other and unspecified disorders of circulatory system
ICD-10-CM category I99 sits in Chapter 9 (Diseases of the circulatory system, I00-I99). It contains 2 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Billable codes in I99
| Code | Description |
|---|---|
I99.8 | Other disorder of circulatory system |
I99.9 | Unspecified disorder of circulatory system |
Search within ICD-10-CM for I99 and related codes
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