I99.8 – Other disorder of circulatory system
ICD-10-CM 2027 diagnosis code · Other and unspecified disorders of the circulatory system
ICD-10-CM code
I99.8
- Code
I99.8(claims format:I998)- Description
- Other disorder of circulatory system
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 9. Diseases of the circulatory system (I00-I99)
- Block
- I95-I99 Other and unspecified disorders of the circulatory system
- Parent codes
- I99
Index terms for I99.8
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Ischemia, ischemic
- Dissection, vascular
- Angiectasis, angiectopia
- Dilatation, blood vessel
- Fluctuating blood pressure
- Occlusion, occluded, vessel
- Atrophy, atrophic, vascular
- Blood, pressure, fluctuating
- Disease, diseased, circulatory
- Complication, circulatory system
- Circulation, collateral, any site
- Occlusion, occluded, vascular NEC
- Insufficiency, insufficient, vascular
- Disease, diseased, vascular, occlusive
- Congestion, congestive, circulatory NEC
- Insufficiency, insufficient, arteriovenous
- Insufficiency, insufficient, circulatory NEC
- Obstruction, obstructed, obstructive, vessel NEC
- Obstruction, obstructed, obstructive, circulatory
Related codes in I99
Frequently asked questions
What is ICD-10 code I99.8?
I99.8 is the ICD-10-CM code for other disorder of circulatory system, in the block I95-I99 (Other and unspecified disorders of the circulatory system).
Is I99.8 a billable code?
Yes. I99.8 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does I99.8 belong to?
It belongs to category I99 – Other and unspecified disorders of circulatory system.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.