ICD-10 Code I99.8

Other disorder of circulatory system

Version 2019 Billable Code
Short Description:Other disorder of circulatory system
Long Description:Other disorder of circulatory system

Valid for Submission

ICD-10 I99.8 is a billable code used to specify a medical diagnosis of other disorder of circulatory system. The code is valid for the year 2019 for the submission of HIPAA-covered transactions.

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Other and unspecified disorders of the circulatory system (I95-I99)
      • Other and unspecified disorders of circulatory system (I99)

Information for Medical Professionals

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code I99.8 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.


Convert I99.8 to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 459.89 - Circulatory disease NEC (Approximate Flag)


The following clinical terms are approximate synonyms:

  • Abnormality of hepatic vein
  • Acquired arteriovenous malformation
  • Acute vascular insufficiency
  • Acute visceral ischemia
  • Alteration in tissue perfusion
  • Arterial ischemia
  • Arteriovenous disorder
  • Arteriovenous fistula occlusion
  • Arteriovenous fistula rupture
  • Arteriovenous graft occlusion
  • Arteriovenous shunt occlusion
  • Bacterial cardiovascular infection
  • Calcinosis following arterial/venous infarct
  • Calcinosis following tissue necrosis/infarction
  • Cardiovascular fistula due to endocarditis
  • Cardiovascular morbidity
  • Cardiovascular system hereditary disorder
  • Chronic disease of cardiovascular system
  • Chronic vascular insufficiency
  • Contusion of skin co-occurrent and due to vascular fragility
  • Critical ischemia of foot
  • Critical lower limb ischemia
  • Cushing phenomenon
  • Dehiscence of aortic valve annulus as complication of procedure
  • Dermatosis resulting from small vessel insufficiency
  • Dermatosis resulting from vascular insufficiency
  • Dilated blood vessel
  • Dilated blood vessels in skin
  • Disorder of arteriovenous shunt
  • Disorder of oxygen transport
  • Disorder of oxygen transport
  • Disorder of portal venous system
  • Disruption of aortic valve annulus
  • Ductus arteriosus dependent systemic circulation
  • Entrapment of blood vessel
  • Flap ischemia
  • Fragile blood vessel
  • Fungal cardiovascular infection
  • Graft failure due to prolonged ischemia
  • Hereditary cutaneous vascular syndrome
  • Hereditary dysplasia of blood vessel
  • Hereditary endotheliopathy, retinopathy, nephropathy, stroke syndrome
  • Hypostasis
  • Impairment of peripheral tissue perfusion
  • Inadequate flow to support prescribed dialysis blood flow
  • Increased oxygen demand
  • Ineffective tissue perfusion
  • Ischemia
  • Ischemia co-occurrent and due to increased oxygen demand
  • Ischemia of bilateral lower limbs
  • Ischemia of bilateral upper limbs
  • Ischemia of left upper extremity
  • Ischemia of stoma
  • Ischemic finger
  • Ischemic foot
  • Ischemic hand
  • Ischemic reperfusion injury
  • Ischemic toe
  • Limb ischemia
  • Lower limb ischemia
  • Mass of cardiovascular structure
  • O/E - dilated blood vessels
  • Obstruction of surgically constructed systemic venous pathway as complication of procedure
  • Occlusion of microvasculature of skin caused by platelet plug
  • Pain of bilateral lower limbs co-occurrent and due to ischemia
  • Pain of bilateral upper limbs co-occurrent and due to ischemia
  • Pain of left lower limb co-occurrent and due to ischemia
  • Pain of right lower limb co-occurrent and due to ischemia
  • Peripheral ischemia
  • Purpura due to increased intravascular pressure
  • Retinal arteriovenous dilatation
  • Spontaneous bruising
  • Thrombophilia due to vascular anomaly
  • Transient ischemia
  • Upper limb ischemia
  • Vascular calcification
  • Vascular graft calcification
  • Vascular graft occlusion
  • Vascular insufficiency
  • Venous collateral circulation, any site
  • Venous star
  • Viral cardiovascular infection
  • Visceral ischemia

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code I99.8 are found in the index:

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.