ICD-10 Code I99.9

Unspecified disorder of circulatory system

Version 2019 Billable Code
ICD-10:I99.9
Short Description:Unspecified disorder of circulatory system
Long Description:Unspecified disorder of circulatory system

Valid for Submission

ICD-10 I99.9 is a billable code used to specify a medical diagnosis of unspecified 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 I99.9 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 302 - ATHEROSCLEROSIS WITH MCC
  • 303 - ATHEROSCLEROSIS WITHOUT MCC

Convert I99.9 to ICD-9

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

  • 459.9 - Circulatory disease NOS (Approximate Flag)

Synonyms

The following clinical terms are approximate synonyms:

  • Acquired cardiovascular abnormality associated with atrioventricular septal defect
  • Acute disease of cardiovascular system
  • Cardiovascular abnormality due to anomalous origin of arterial duct
  • Cardiovascular abnormality due to anomalous origin of coronary artery from pulmonary artery
  • Cardiovascular abnormality due to anomalous origin of coronary artery orifice
  • Cardiovascular abnormality due to bilateral arterial ducts
  • Cardiovascular abnormality due to infective myocarditis
  • Cardiovascular abnormality due to patent arterial duct
  • Cardiovascular sequelae of disorders
  • Cardiovascular system complication of procedure
  • Cardiovascular system problem
  • Corvisart's facies
  • Disease affecting entire cardiovascular system
  • Disease of circulatory system complicating pregnancy childbirth and puerperium
  • Disorder of blood vessels of thorax
  • Erythrocytosis due to cardiovascular disease
  • Glaucoma associated with vascular disorder
  • Hereditary angiopathy with nephropathy, aneurysms, and muscle cramps syndrome
  • Impaired circulatory system function
  • Inflammatory disorder of the cardiovascular system
  • Neovascular glaucoma
  • Sequelae of cardiovascular disorders
  • Sequelae of disorders by system of sequelae
  • Vascular disease of abdomen
  • Vascular disorder
  • Vascular disorder of pelvis

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 I99.9 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.