ICD-10-CM Diagnosis Code I78.8 - Other diseases of capillaries (original) (raw)
ICD List 2025-2026 Edition
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- 2026 ICD-10-CM Code I78.8
Other diseases of capillaries
ICD-10-CM Code:
I78.8
ICD-10 Code for:
Other diseases of capillaries
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:
I78.8 is a billable diagnosis code used to specify a medical diagnosis of other diseases of capillaries. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.
- Code Information
- Approximate Synonyms
- Clinical Classification
- Clinical Information
- Tabular List of Diseases and Injuries
- Index to Diseases and Injuries References
- Diagnostic Related Groups Mapping
- Convert to ICD-9 Code
- Patient Education
- Other Codes Used Similar Conditions
- Code History
- Diseases of the circulatory system
I00–I99
The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.
- Acquired hemangiomatosis
- Capillaritis
- Capillaritis caused by drug
- Capillary hemorrhage
- Capillary hyperpermeability
- Capillary leak syndrome
- Capillary thrombosis
- Decreased capillary fragility
- Decreased capillary resistance
- Decreased vascular resistance
- Dilated capillaries
- Edema of soft tissue due to increased capillary pressure
- Familial pulmonary capillary hemangiomatosis
- Idiopathic capillaritis
- Increased blood vessel permeability
- Increased capillary permeability
- Increased capillary resistance
- Increased vascular resistance
- Isolated pulmonary capillaritis
- Multiple progressive hemangiomata
- Necrosis of capillary of kidney due to glomerular disease
- Occlusion of cutaneous microvasculature structure by cardiac embolus
- Occlusion of microvasculature of skin caused by cryoglobulin type III
- Occlusion of microvasculature of skin caused by embolus
- Occlusion of microvasculature of skin caused by embolus
- Occlusion of microvasculature of skin caused by embolus
- Occlusion of microvasculature of skin caused by platelet plug
- Occlusion of microvasculature of skin caused by platelet plug
- Occlusion of microvasculature of skin due to coagulopathy
- Occlusion of microvasculature of skin due to myeloproliferative disorder-associated platelet plugs
- Occlusion of microvasculature of skin due to platelet thrombus associated with paroxysmal nocturnal hemoglobinuria
- Platelet embolism
- Pulmonary capillaritis
- Pulmonary capillary hemangiomatosis
- Pulmonary hypertension due to familial pulmonary capillary hemangiomatosis
- Pulmonary hypertension due to pulmonary capillary hemangiomatosis
- Strawberry nevus of skin
- Sunburst telangiectases
- Ulcero - mutilating hemangiomatosis
Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.
They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.
CCSR Code: CIR032
Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Capillary Leak Syndrome
a condition characterized by recurring episodes of fluid leaking from capillaries into extra-vascular compartments causing hematocrit to rise precipitously. if not treated, generalized vascular leak can lead to generalized edema; shock; cardiovascular collapse; and multiple organ failure.
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Atonia, atony, atonic
- - capillary - I78.8
- - Bleeding - See Also: Hemorrhage;
- - capillary - I78.8
- - Deformity - Q89.9
- - capillary (acquired) - I78.8
- - Degeneration, degenerative
- - capillaries (fatty) - I78.8
- - Dilatation
- - capillaries - I78.8
- - Disease, diseased - See Also: Syndrome;
- - capillaries - I78.9
* - specified NEC - I78.8
- - capillaries - I78.9
- - Ectasia, ectasis
- - capillary - I78.8
- - Embolism (multiple) (paradoxical) - I74.9
- - capillary - I78.8
- - Hemangiomatosis (systemic) - I78.8
- - Hemorrhage, hemorrhagic (concealed) - R58
- - capillary - I78.8
- - Hyperpermeability, capillary - I78.8
- - Increase, increased
- - permeability, capillaries - I78.8
- - Rupture, ruptured
- - capillaries - I78.8
- - Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) - I82.90
- - capillary - I78.8
References found for this diagnosis code in the External Cause of Injuries Index:
- Atonia, atony, atonic
- capillary
- Bleeding
- capillary
- Deformity
- capillary (acquired)
- Degeneration, degenerative
- capillaries (fatty)
- Dilatation
- capillaries
- Disease, diseased
- capillaries
- specified NEC
- capillaries
- Ectasia, ectasis
- capillary
- Embolism(multiple) (paradoxical)
- capillary
- Hemangiomatosis(systemic)
- Hemorrhage, hemorrhagic(concealed)
- capillary
- Hyperpermeability, capillary
- Increase, increased
- permeability, capillaries
- Rupture, ruptured
- capillaries
- Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
- capillary
Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.
ICD-9-CM: 448.9
Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.
Vascular Diseases
What are vascular diseases?
Your vascular system is your body's network of blood vessels. It includes your:
- Arteries, which carry oxygen-rich blood from your heart to your tissues and organs
- Veins, which carry the blood and waste products back to your heart
- Capillaries, which are tiny blood vessels that connect your small arteries to your small veins. The walls of the capillaries are thin and leaky, to allow for an exchange of materials between your tissues and blood.
Vascular diseases are conditions which affect your vascular system. They are common and can be serious. Some types include:
- Aneurysm - a bulge or "ballooning" in the wall of an artery
- Atherosclerosis - a disease in which plaque builds up inside your arteries. Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood.
- Blood clots, including deep vein thrombosis and pulmonary embolism
- Coronary artery disease and carotid artery disease, diseases that involve the narrowing or blockage of an artery. The cause is usually a buildup of plaque.
- Raynaud phenomenon - a disorder that causes the blood vessels to narrow when you are cold or feeling stressed
- Stroke - a serious condition that happens when blood flow to your brain stops.
- Varicose veins - swollen, twisted veins that you can see just under the skin
- Vasculitis - inflammation of the blood vessels
What causes vascular diseases?
The causes of vascular diseases depend on the specific disease. These causes include:
- Genetics
- Heart diseases such as high cholesterol and high blood pressure
- Infection
- Injury
- Medicines, including hormones
Sometimes the cause is unknown.
Who is at risk for vascular diseases?
The risk factors for vascular diseases can vary, depending on the specific disease. But some of the more common risk factors include:
- Age - your risk of some diseases goes up as you get older
- Conditions that can affect the heart and blood vessels, such as diabetes or high cholesterol
- Family history of vascular or heart diseases
- Infection or injury that damages your veins
- Lack of exercise
- Obesity
- Pregnancy
- Sitting or standing still for long periods of time
- Smoking
What are the symptoms of vascular diseases?
The symptoms for each disease are different.
How are vascular diseases diagnosed?
To make a diagnosis, your health care provider will do a physical exam and ask about your symptoms and medical history. You may have imaging tests and/or blood tests.
How are vascular diseases treated?
Which treatment you get depends on which vascular disease you have and how severe it is. Types of treatments for vascular diseases include:
- Lifestyle changes, such as eating a heart-healthy diet and getting more exercise
- Medicines, such as blood pressure medicines, blood thinners, cholesterol medicines, and clot-dissolving drugs. In some cases, providers use a catheter to send medicine directly to a blood vessel.
- Non-surgical procedures, such as angioplasty, stenting, and vein ablation
- Surgery
Can vascular diseases be prevented?
There are steps you can take to help prevent vascular diseases:
- Make healthy lifestyle changes, such as eating a heart-healthy diet and getting more exercise
- Don't smoke. If you are already a smoker, talk to your health care provider for help in finding the best way for you to quit.
- Keep your blood pressure and cholesterol in check
- If you have diabetes, control your blood sugar
- Try not to sit or stand for up long periods of time. If you do need to sit all day, get up and move around every hour or so. If you are traveling on a long trip, you can also wear compression stockings and regularly stretch your legs.
FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.
