2027 ICD-10-CM Diagnosis Code Z86.79Personal history of other diseases of the circulatory system
Z86.79 is a billable ICD-10-CM diagnosis code for personal history of other diseases of the circulatory system. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of other disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z86.79.
Present on Admission (POA)Billing
Z86.79 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- H/O ventricular fibrillation
- H/O: Angina in last year
- H/O: angina pectoris
- H/O: aortic aneurysm
- H/O: atrial fibrillation
- H/O: birth trauma
- H/O: cardiovascular disease
- H/O: embolism
- H/O: heart disorder
- H/O: heart failure
- H/O: Heart failure in last year
- H/O: hypertension
- H/O: myocardial problem
- H/O: perinatal problem
- H/O: rheumatic fever
- H/O: varicose veins
- Healed bacterial endocarditis
- History of acute ST segment elevation myocardial infarction
- History of anastomosis of superior vena cava to pulmonary artery
- History of anastomosis of vena cava to pulmonary artery
- History of aneurysm
- History of aneurysm of artery of trunk
- History of aneurysm of iliac artery
- History of aneurysm of peripheral artery
- History of angioedema
- History of aortic valve stenosis
- History of aortoiliac atherosclerosis
- History of arterial thrombosis
- History of arteritis
- History of artery embolism
- History of atrial flutter
- History of bidirectional superior cavopulmonary anastomosis
- History of bradycardia
- History of cardiac arrest
- History of cardiac arrhythmia
- History of cardiomyopathy
- History of carotid artery stenosis
- History of cerebral aneurysm
- History of cerebral hemorrhage
- History of cerebrovascular accident with intracranial hemorrhage
- History of cerebrovascular accident with residual deficit
- History of cerebrovascular disease
- History of chest pain
- History of chronic dissection of thoracic aorta
- History of claudication
- History of diabetic peripheral angiopathy
- History of disorder of soft tissue
- History of dissection of carotid artery
- History of dissection of external carotid artery
- History of dissection of internal carotid artery
- History of endocarditis
- History of epidural hematoma
- History of esophageal varices
- History of gangrenous disorder
- History of giant cell arteritis
- History of heart block
- History of hemorrhage into ventricle of brain
- History of hemorrhagic cerebrovascular accident with residual deficit
- History of hypotension
- History of intracranial hemorrhage
- History of intracranial hemorrhage due to birth trauma
- History of intracranial subdural hematoma
- History of myocardial infarction due to atherothrombotic coronary artery disease
- History of myocardial infarction due to demand ischemia
- History of myocarditis
- History of neonatal nontraumatic intraventricular hemorrhage
- History of nontraumatic intraparenchymal cerebral hemorrhage
- History of nontraumatic ruptured cerebral aneurysm
- History of nontraumatic subdural hematoma
- History of occlusion of branch retinal artery
- History of occlusion of central retinal artery
- History of occlusion of cerebral artery
- History of occlusion of cerebral artery without cerebral infarction
- History of occlusive disease of artery of lower extremity
- History of occlusive disease of artery of upper extremity
- History of pain at rest due to peripheral vascular disease
- History of palpitations
- History of paroxysmal atrial tachycardia
- History of paroxysmal supraventricular tachycardia
- History of pericarditis
- History of peripheral arterial occlusive disease
- History of peripheral ischemia
- History of peripheral vascular disease
- History of portal hypertension
- History of pseudoaneurysm
- History of repair of dissecting thoracic aortic aneurysm
- History of repair of thoracic aortic aneurysm
- History of ruptured cerebral aneurysm
- History of sick sinus syndrome
- History of small vessel disease due to diabetes mellitus
- History of spinal cord infarct
- History of spinal cord injury
- History of stable aneurysm of abdominal aorta
- History of stenosis of superior vena cava
- History of subarachnoid hemorrhage
- History of supraventricular tachycardia
- History of surgical procedure on vein
- History of sustained ventricular fibrillation
- History of sustained ventricular tachycardia
- History of syncope
- History of thoracoabdominal aortic aneurysm
- History of torsades de pointe caused by drug
- History of torsades type ventricular tachycardia due to prolonged QT interval
- History of vasculitis
- History of visceral aneurysm
- Hypertension monitoring check done
- Hypertension monitoring status
- Hypertension resolved
- Hypertension:follow-up default
- Patient condition resolved
- Resolution of myocardial ischemia
- Seen in hypertension clinic
- Spontaneous closure of acquired interatrial communication
- Spontaneous closure of residual interatrial communication
- Spontaneous recanalization of systemic vein
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z86.79: its own notes plus those printed at Z86.7, Z86, block Z77-Z99, and Chapter 21. A note printed at a category, block or chapter applies to every code under it.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Code First
The underlying condition named in the note is sequenced before this code.
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
Notes
General instructions on how these codes are used.
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name Z86.79, its category, or a range that includes it.
Use Additional Code 1
These codes say to use an additional code from the note, and Z86.79 is one of the codes named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
personal (of) See Also: History, family (of);
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Heart Diseases
Heart disease is a general term that includes many types of heart problems. It's a type of cardiovascular disease, which means heart and blood vessel disease.
The full article covers:
- What is heart disease?
- What are the types of heart disease?
- What causes heart diseases?
- Who is more likely to develop heart diseases?
- What are the symptoms of heart disease?
- How are heart diseases diagnosed?
- What are the treatments for heart disease?
- Can heart diseases be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z86.79 to ICD-9-CMHistory
Code HistoryHistory
Questions About Z86.79Overview
What is the ICD-10 code for personal history of other diseases of the circulatory system?
The ICD-10-CM code for personal history of other diseases of the circulatory system is Z86.79 (sometimes written as Z8679). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Z86.79 (Personal history of diseases of the circulatory system) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report personal history of other diseases of the circulatory system on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z86.79 group to?
On inpatient claims, personal history of other diseases of the circulatory system maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.5574. Higher weights mean higher Medicare reimbursement.
Can Z86.79 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of other diseases of the circulatory system describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z86.79 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for personal history of other diseases of the circulatory system on inpatient claims. The code appears in the Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99) range of the CMS exempt list.
