ICD-9 Code 451.9
Phlebitis and thrombophlebitis of unspecified site
Not Valid for Submission
451.9 is a legacy non-billable code used to specify a medical diagnosis of phlebitis and thrombophlebitis of unspecified site. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
ICD-9: | 451.9 |
Short Description: | Thrombophlebitis NOS |
Long Description: | Phlebitis and thrombophlebitis of unspecified site |
Convert 451.9 to ICD-10
The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:
- I80.9 - Phlebitis and thrombophlebitis of unspecified site
Code Classification
-
Diseases of the circulatory system (390–459)
-
Diseases of veins and lymphatics, and other diseases of circulatory system (451-459)
- 451 Phlebitis and thrombophlebitis
-
Diseases of veins and lymphatics, and other diseases of circulatory system (451-459)
Information for Medical Professionals
Index to Diseases and Injuries
References found for the code 451.9 in the Index of Diseases and Injuries:
- Endophlebitis SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Phlebitis 451.9- leg 451.2
- deep vessels 451.19
- superficial vessels 451.0
- portal vein 572.1
- retina 362.18
- specified site NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 451.89
- syphilitic 093.89
- leg 451.2
- Gout gouty 274.9
- phlebitis 274.89 451.9
- Inflammation inflamed inflammatory with exudation
- vein SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Phlebitis 451.9- thrombotic 451.9
- cerebral SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Thrombosis brain 434.0
- leg 451.2
- superficial vessels 451.0
- lower extremity 451.2
- superficial vessels 451.0
- cerebral SEE ALSO See Also
- thrombotic 451.9
- vein SEE ALSO See Also
- Periphlebitis SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Phlebitis 451.9- lower extremity 451.2
- deep vessels 451.19
- superficial vessels 451.0
- portal 572.1
- retina 362.18
- superficial vessels 451.0
- tuberculous SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Tuberculosis 017.9- retina 017.3 362.18
- lower extremity 451.2
- Phlebitis infective pyemic septic suppurative 451.9
- antecubital vein 451.82
- arm NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 451.84- axillary vein 451.89
- basilic vein 451.82
- deep 451.83
- superficial 451.82
- axillary vein 451.89
- basilic vein 451.82
- blue 451.9
- brachial vein 451.83
- breast superficial 451.89
- cavernous venous sinus see Phlebitis intracranial sinus
- cephalic vein 451.82
- cerebral venous sinus see Phlebitis intracranial sinus
- chest wall superficial 451.89
- complicating pregnancy or puerperium 671.2
- affecting fetus or newborn 760.3
- cranial venous sinus see Phlebitis intracranial sinus
- deep vessels 451.19
- femoral vein 451.11
- due to implanted device see Complications due to presence of any device implant or graft classified to 996.0 996.5 NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.
- during or resulting from a procedure 997.2
- femoral vein deep superficial 451.11
- femoropopliteal 451.19
- following infusion perfusion or transfusion 999.2
- gouty 274.89 451.9
- hepatic veins 451.89
- iliac vein 451.81
- iliofemoral 451.11
- intracranial sinus any venous 325
- late effect see category 326
- nonpyogenic 437.6
- in pregnancy or puerperium 671.5
- jugular vein 451.89
- lateral venous sinus see Phlebitis intracranial sinus
- leg 451.2
- deep vessels 451.19
- superficial vessels 451.0
- femoral vein 451.11
- longitudinal sinus see Phlebitis intracranial sinus
- lower extremity 451.2
- deep vessels 451.19
- superficial vessels 451.0
- femoral vein 451.11
- migrans migrating superficial 453.1
- pelvic
- with
- abortion see Abortion by type with sepsis
- ectopic pregnancy SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. categories 633.0 633.9 639.0
- molar pregnancy SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. categories 630 632 639.0
- following
- abortion 639.0
- ectopic or molar pregnancy 639.0
- puerperal postpartum 671.4
- with
- popliteal vein 451.19
- portal vein 572.1
- postoperative 997.2
- pregnancy 671.2
- deep 671.3
- puerperal postpartum childbirth 671.2
- deep 671.4
- lower extremities 671.2
- pelvis 671.4
- radial vein 451.83
- retina 362.18
- saphenous great long 451.0
- accessory or small 451.0
- sinus meninges see Phlebitis intracranial sinus
- specified site NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 451.89
- subclavian vein 451.89
- syphilitic 093.89
- tibial vein 451.19
- ulcer ulcerative 451.9
- leg 451.2
- deep vessels 451.19
- superficial vessels 451.0
- femoral vein 451.11
- lower extremity 451.2
- deep vessels 451.19
- femoral vein 451.11
- superficial vessels 451.0
- deep vessels 451.19
- leg 451.2
- ulnar vein 451.83
- umbilicus 451.89
- upper extremity see Phlebitis arm
- deep veins 451.83
- brachial vein 451.83
- radial vein 451.83
- ulnar vein 451.83
- superficial veins 451.82
- antecubital vein 451.82
- basilic vein 451.82
- cephalic vein 451.82
- deep veins 451.83
- uterus septic SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Endometritis 615.9
- varicose leg lower extremity SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Varicose vein 454.1
- Thrombophlebitis 451.9
- antecubital vein 451.82
- antepartum superficial 671.2
- affecting fetus or newborn 760.3
- deep 671.3
- arm 451.89
- deep 451.83
- superficial 451.82
- breast superficial 451.89
- cavernous venous sinus see Thrombophlebitis intracranial venous sinus
- cephalic vein 451.82
- cerebral sinus vein 325
- late effect see category 326
- nonpyogenic 437.6
- in pregnancy or puerperium 671.5
- late effect see Late effect s of cerebrovascular disease
- due to implanted device see Complications due to presence of any device implant or graft classified to 996.0 996.5 NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.
- during or resulting from a procedure NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 997.2
- femoral 451.11
- femoropopliteal 451.19
- following infusion perfusion or transfusion 999.2
- hepatic vein 451.89
- idiopathic recurrent 453.1
- iliac vein 451.81
- iliofemoral 451.11
- intracranial venous sinus any 325
- late effect see category 326
- nonpyogenic 437.6
- in pregnancy or puerperium 671.5
- late effect see Late effect s of cerebrovascular disease
- jugular vein 451.89
- lateral venous sinus see Thrombophlebitis intracranial venous sinus
- leg 451.2
- deep vessels 451.19
- femoral vein 451.11
- superficial vessels 451.0
- femoral vein 451.11
- deep vessels 451.19
- longitudinal venous sinus see Thrombophlebitis intracranial venous sinus
- lower extremity 451.2
- deep vessels 451.19
- femoral vein 451.11
- superficial vessels 451.0
- deep vessels 451.19
- migrans migrating 453.1
- pelvic
- with
- abortion see Abortion by type with sepsis
- ectopic pregnancy SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. categories 633.0 633.9 639.0
- molar pregnancy SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. categories 630 632 639.0
- following
- abortion 639.0
- ectopic or molar pregnancy 639.0
- puerperal 671.4
- with
- popliteal vein 451.19
- portal vein 572.1
- postoperative 997.2
- pregnancy superficial 671.2
- affecting fetus or newborn 760.3
- deep 671.3
- puerperal postpartum childbirth extremities superficial 671.2
- deep 671.4
- pelvic 671.4
- septic 670.3
- radial vein 451.82
- saphenous greater lesser 451.0
- sinus intracranial see Thrombophlebitis intracranial venous sinus
- specified site NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 451.89
- tibial vein 451.19
Information for Patients
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's disease - 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 traveling on a long trip, you can also wear compression stockings and regularly stretch your legs.
[Read More]
ICD-9 Footnotes
General Equivalence Map Definitions
The ICD-9 and ICD-10 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.
Index of Diseases and Injuries Definitions
- And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
- Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
- NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
- See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
- See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
- 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.