ICD-10 Codes Explained
International Classification of Diseases codes for diagnoses and conditions. Understand what each diagnosis code means on your medical bills.
Showing 50 of 452 ICD-10 codes
S2249XAMultiple broken ribs, unspecified side - initial treatment for closed fractures
This code represents the initial medical encounter for treating multiple rib fractures where the specific side (left or right) is not documented. The fractures are 'closed,' meaning the broken bones have not pierced through the skin. This code is used when a patient first receives treatment for having broken multiple ribs, typically from trauma such as a fall, car accident, or sports injury.
Z01419Routine gynecological examination with normal findings
This code represents a routine gynecological examination where no abnormal findings were discovered during the visit. This is a preventive care encounter that includes a standard gynecological exam such as a pelvic exam, breast exam, and other routine screening procedures. The 'without abnormal findings' designation means that all examination results were within normal limits and no concerning issues were identified during the visit.
L579Skin changes caused by long-term exposure to non-ionizing radiation, type not specified
This code describes skin changes that have developed due to chronic (long-term) exposure to non-ionizing radiation. Non-ionizing radiation includes sources like ultraviolet light, infrared radiation, microwaves, and radio waves. The 'unspecified' designation means the exact type of skin change or specific radiation source is not detailed in the medical record. These skin changes can include various conditions such as premature aging, pigmentation changes, or other dermatological effects that result from prolonged exposure to these types of radiation.
Z48815Follow-up visit after digestive system surgery
This code is used when you have a scheduled follow-up appointment or encounter with your healthcare provider after having surgery on your digestive system. This includes routine post-surgical care, checking how you're healing, removing stitches or staples, wound care, or monitoring your recovery progress. The digestive system includes organs like the stomach, intestines, liver, gallbladder, and pancreas.
L718Other types of rosacea not specifically classified elsewhere
This code represents forms of rosacea that don't fit into the more specific rosacea categories. Rosacea is a chronic skin condition that primarily affects the face, causing redness, visible blood vessels, and sometimes bumps or pimples. This particular code is used when a patient has rosacea symptoms that don't match the typical patterns of other defined rosacea types, or when multiple rosacea features are present together.
I639Stroke (brain tissue damage due to blocked blood flow), type not specified
This code indicates that you have had a cerebral infarction, which is the medical term for a stroke caused by blocked blood flow to part of the brain. When blood flow is interrupted, brain tissue in that area becomes damaged or dies. The 'unspecified' designation means that the medical records don't specify the exact type or location of the stroke, or the specific blood vessel that was affected. This is a serious medical condition that requires immediate medical attention and ongoing care.
H04123Dry eye syndrome affecting tear glands in both eyes
This code represents dry eye syndrome that specifically affects the lacrimal glands (tear-producing glands) in both eyes. Dry eye syndrome occurs when your eyes don't produce enough tears or when the tears evaporate too quickly, leading to eye discomfort, irritation, and potential vision problems. When it affects the bilateral lacrimal glands, it means the tear-producing glands in both eyes are not functioning properly, resulting in insufficient tear production.
H02831Drooping or sagging skin of the right upper eyelid
This code refers to dermatochalasis of the right upper eyelid, which is a condition where the skin of the upper eyelid becomes loose, saggy, or droopy. This typically occurs due to aging, as the skin loses its elasticity over time, causing excess skin to hang over the eyelid. The condition affects specifically the right upper eyelid and falls under the category of eye and eyelid disorders. While often cosmetic in nature, severe cases can sometimes interfere with vision if the drooping skin obstructs the visual field.
H02834Excess, loose skin on the left upper eyelid
Dermatochalasis is a condition where the skin of the upper eyelid becomes loose, saggy, or droopy due to loss of elasticity. This specific code refers to this condition affecting the left upper eyelid only. The excess skin may cause the eyelid to appear heavy or hooded, and in some cases, it can interfere with vision if the drooping skin hangs over the eye. This is commonly an age-related condition but can also occur due to other factors affecting skin elasticity.
G600Inherited condition affecting nerves that control movement and sensation
Hereditary motor and sensory neuropathy is a group of inherited disorders that affect the peripheral nerves - the nerves outside the brain and spinal cord. These conditions cause progressive weakness and loss of sensation, typically starting in the hands and feet. The condition is genetic, meaning it's passed down through families. Symptoms may include muscle weakness, difficulty walking, loss of sensation in extremities, and muscle wasting. The severity and progression can vary significantly between individuals, even within the same family.
Z48812Follow-up visit after heart or blood vessel surgery
This code is used when you have a scheduled follow-up appointment or encounter with your healthcare provider after having surgery on your heart, blood vessels, or circulatory system. This includes routine post-operative care, checking on your recovery progress, wound healing, removing stitches or staples, and monitoring for any complications. It's a normal part of the healing process after cardiovascular surgery.
H538Other visual disturbances - vision problems not classified elsewhere
This code represents various types of visual disturbances that don't fit into other specific categories. It covers vision problems that affect how you see but aren't classified as blindness, amblyopia (lazy eye), or other specifically defined visual conditions. These could include various symptoms like visual distortions, unusual visual sensations, or other sight-related issues that your eye care provider has identified but that don't match more specific diagnostic categories.
R0609Other forms of difficulty breathing or shortness of breath
This code is used to document breathing difficulties or shortness of breath that don't fit into other specific categories of breathing problems. Dyspnea is the medical term for difficulty breathing or feeling short of breath. This particular code covers various types of breathing difficulties that aren't classified elsewhere in the medical coding system.
E782High levels of multiple types of fats in the blood
Mixed hyperlipidemia is a condition where you have elevated levels of more than one type of fat (lipid) in your blood. This typically includes high cholesterol and high triglycerides occurring together. These elevated fat levels can increase your risk of heart disease and stroke if left untreated. The condition is often managed through dietary changes, exercise, and sometimes medications to help lower these fat levels in your blood.
S36032AMajor tear or cut in the spleen (first visit for this injury)
This code represents a severe injury to the spleen, which is an organ located in the upper left part of your abdomen that helps filter blood and fight infection. A major laceration means there is a significant tear or cut in the spleen tissue. The 'initial encounter' means this is the first time you're receiving medical care for this specific injury. This type of injury typically occurs from blunt trauma like car accidents, falls, or sports injuries, and can be life-threatening due to internal bleeding.
M7542Impingement syndrome affecting the left shoulder
Impingement syndrome occurs when the tendons or bursa (fluid-filled sacs) in the shoulder become compressed or pinched between the bones during arm movement. This condition specifically affects the left shoulder and can cause pain, weakness, and limited range of motion, particularly when lifting the arm overhead or reaching behind the back.
L2089Other forms of atopic dermatitis (eczema) not specified elsewhere
This code represents atopic dermatitis, commonly known as eczema, that doesn't fit into other specific categories. Atopic dermatitis is a chronic inflammatory skin condition that causes red, itchy, and inflamed patches of skin. This particular code is used when the type of atopic dermatitis doesn't match other more specific classifications in the medical coding system.
N6489Other specified breast disorders not classified elsewhere
This code is used for breast conditions that have specific characteristics but don't fit into other more common breast disorder categories in the medical coding system. It covers various breast problems that are clearly defined but are relatively uncommon or don't match the criteria for other specific breast disorder codes. The exact condition would be documented in detail in your medical records.
R600Swelling in a specific area of the body due to fluid buildup
Localized edema refers to swelling that occurs in a specific, limited area of the body rather than throughout the body. This happens when excess fluid accumulates in the tissues of that particular area. The swelling is typically noticeable as puffiness or enlargement in the affected region. This code is used when the edema is confined to one area rather than being widespread or generalized throughout the body.
K635A growth (polyp) found in the large intestine (colon)
This code indicates the presence of a polyp in the colon, which is a small growth that protrudes from the inner lining of the large intestine. Colon polyps are relatively common and are often discovered during routine colonoscopy screenings. While most polyps are benign (non-cancerous), some types can potentially develop into cancer over time if left untreated. The size, type, and number of polyps help determine the appropriate treatment and follow-up care needed.
L710Perioral dermatitis - a skin condition causing small bumps and redness around the mouth
Perioral dermatitis is a facial skin condition that causes small, red, bumpy rashes around the mouth area. The rash typically appears as tiny papules (small raised bumps) or pustules that may be itchy or cause a burning sensation. This condition most commonly affects women between ages 20-45, though it can occur in children and men as well. The exact cause is not fully understood, but it may be triggered by topical steroids, heavy moisturizers, fluorinated toothpaste, or hormonal changes. The condition is chronic but treatable with proper medical care.
I83819Painful varicose veins in the leg
This code represents varicose veins (enlarged, twisted veins) in either leg that are causing pain. Varicose veins occur when the valves in the veins don't work properly, causing blood to pool and the veins to become swollen and visible under the skin. The pain associated with this condition can range from aching and throbbing to cramping sensations, and may worsen with prolonged standing or sitting.
L309Skin inflammation or irritation of unknown type
This code indicates that you have dermatitis, which is a general term for inflammation of the skin that causes redness, swelling, itching, or other irritation. The 'unspecified' part means that your healthcare provider has identified that you have dermatitis but hasn't determined the specific type or cause. Dermatitis can result from allergies, irritants, infections, or other factors, and this code is used when the exact nature hasn't been identified or specified in your medical record.
I483A heart rhythm disorder where the upper chambers beat too fast in a regular pattern
Typical atrial flutter is a specific type of abnormal heart rhythm where the atria (upper chambers of the heart) beat very rapidly, usually at a rate of about 300 beats per minute, but in a regular, organized pattern. This creates a characteristic 'sawtooth' pattern on an electrocardiogram (EKG). Unlike atrial fibrillation where the rhythm is chaotic, atrial flutter has a more predictable pattern. The ventricles (lower chambers) typically beat at a slower rate because not every atrial beat gets conducted through to the ventricles. This condition can cause symptoms like palpitations, shortness of breath, chest discomfort, dizziness, or fatigue.
E039Underactive thyroid gland, type not specified
This code indicates that your thyroid gland is not producing enough thyroid hormone (hypothyroidism), but the specific type or cause has not been determined or specified. The thyroid is a butterfly-shaped gland in your neck that produces hormones controlling your body's metabolism, energy levels, and many other functions. When it's underactive, you may experience symptoms like fatigue, weight gain, cold sensitivity, dry skin, or depression. This is a general diagnostic code used when the doctor has confirmed hypothyroidism but hasn't specified the exact subtype.
S2242XSLong-term effects from multiple broken ribs on the left side
This code represents the ongoing complications or lasting effects (sequela) that can occur after having multiple fractures (breaks) in the ribs on the left side of the chest. A sequela means the patient is being treated for problems that developed as a result of the original rib fractures, rather than for the acute fractures themselves. This could include issues like chronic pain, breathing difficulties, chest wall deformity, or other complications that persist after the initial fractures have healed.
Z1331Encounter for screening for certain single gene defects
This code is used when you visit a healthcare provider specifically for genetic screening to check if you carry certain single gene defects. This type of screening looks for changes in one specific gene that could affect your health or be passed on to your children. The screening is done when you don't have symptoms but want to know if you carry certain genetic variations.
S3681XDFollow-up visit for a previously treated injury to the peritoneum (abdominal lining)
This code is used when you are receiving follow-up care for an injury to the peritoneum, which is the thin membrane that lines the inside of your abdomen and covers most of your abdominal organs. The 'subsequent encounter' means this is not your first visit for this injury - you were previously diagnosed and treated for this peritoneal injury, and you are now returning for continued care, monitoring, or treatment of the same injury.
F321Major depression, single episode, moderate severity
This code indicates a diagnosis of major depressive disorder during a first episode of moderate severity. Major depressive disorder is a mental health condition characterized by persistent feelings of sadness, hopelessness, and loss of interest in activities that significantly impact daily functioning. 'Single episode' means this is the first time the person has experienced major depression. 'Moderate' severity indicates the symptoms are more than mild but not as severe as they could be, typically involving some difficulty with work, social activities, or relationships, but the person can still function with effort.
R921Calcium deposits found on breast mammogram imaging
This code indicates that calcium deposits (calcifications) were detected in breast tissue during a mammogram or other diagnostic breast imaging. Calcifications are small deposits of calcium that appear as white spots on mammograms. They are very common and are usually benign (not cancerous), but sometimes require additional evaluation to determine their significance. The presence of calcifications alone does not indicate cancer, but rather that something was seen on the imaging that needed to be documented.
Z8781History of a completely healed broken bone from an injury
This code indicates that you previously had a bone fracture (broken bone) caused by trauma or injury that has completely healed. This is used for documentation purposes to maintain a record of your past medical history. The fracture is no longer active or causing problems, but healthcare providers use this information to understand your complete medical background when making treatment decisions.
E804Gilbert syndrome - a mild, inherited condition affecting liver processing of bilirubin
Gilbert syndrome is a common, harmless genetic condition where the liver doesn't process bilirubin (a yellow substance from broken-down red blood cells) as efficiently as normal. This can cause mild yellowing of the eyes or skin (jaundice), especially during times of stress, illness, fasting, or dehydration. Most people with Gilbert syndrome have no symptoms and lead completely normal lives. The condition is inherited and affects about 3-12% of the population.
D125Non-cancerous growth in the sigmoid colon (lower part of large intestine)
This code indicates a benign (non-cancerous) tumor or growth located in the sigmoid colon, which is the S-shaped portion of the large intestine that connects to the rectum. Benign neoplasms are abnormal tissue growths that do not spread to other parts of the body and are generally not life-threatening. These growths may include polyps or other non-malignant masses that can be found during colonoscopy or other imaging studies.
I6381Cerebral infarction due to embolism of small artery of brain
This code represents a stroke caused by a blood clot (embolism) that blocks a small artery in the brain. An embolism occurs when a clot or other material travels through the bloodstream from another part of the body and gets stuck in a brain artery, cutting off blood supply to that area of brain tissue. This results in brain cell death (infarction) in the affected region. Small artery strokes typically affect smaller areas of the brain but can still cause significant symptoms depending on the location.
Z09Follow-up visit after treatment for a non-cancer condition
This code is used when you have a scheduled follow-up appointment or examination after receiving treatment for a medical condition that was not cancer. The purpose is to monitor your recovery, check that the treatment was effective, and ensure there are no complications. This is routine care that happens after completing treatment for various non-cancerous conditions.
R21Rash or other non-specific skin eruption
This code is used when a patient has a rash or other skin eruption that cannot be classified into a more specific category. It covers various types of skin reactions, bumps, or changes in skin appearance where the exact cause or specific type of rash has not been determined or doesn't fit into other specific diagnostic categories.
Z7901Currently taking blood-thinning medications long-term
This code indicates that you are currently taking anticoagulant medications (blood thinners) on a long-term basis. Anticoagulants are medications that help prevent blood clots from forming. This is not a diagnosis of a disease, but rather a documentation code that healthcare providers use to record that you are on this type of medication therapy. Common anticoagulants include warfarin, heparin, and newer medications like rivaroxaban or apixaban. This code helps ensure all your healthcare providers are aware of your anticoagulant therapy when making treatment decisions.
S2243XDFollow-up visit for multiple rib fractures on both sides that are healing normally
This code is used for a subsequent medical encounter (follow-up visit) for a patient who previously had multiple rib fractures on both sides of their chest. The 'XD' extension indicates this is a routine follow-up visit where the fractures are healing as expected without complications. This is not the code used for the initial injury treatment, but rather for checking on the healing progress during recovery.
H2511Age-related nuclear cataract in the right eye
This code represents an age-related nuclear cataract affecting the right eye. A nuclear cataract is a type of cataract that forms in the center (nucleus) of the eye's natural lens. This condition typically develops as part of the normal aging process, causing the central part of the lens to become cloudy or opaque. Nuclear cataracts can cause blurred vision, difficulty seeing in bright light, and may affect your ability to distinguish colors clearly. The cloudiness occurs specifically in the right eye in this case.
F1320Dependence on sedative, sleep, or anti-anxiety medications without complications
This code indicates a diagnosis of dependence on medications that help with sleep (sedatives), promote sleep (hypnotics), or reduce anxiety (anxiolytics). The 'uncomplicated' designation means the dependence exists without additional medical complications like withdrawal symptoms, intoxication, or other related disorders. This represents a pattern where someone has developed a physical or psychological need for these medications and may experience difficulty functioning without them.
L814Other types of increased melanin pigmentation in the skin
This code represents various conditions where there is an abnormal increase in melanin (the pigment that gives skin its color) that doesn't fit into other specific categories. This can result in darker patches or areas of skin. The increased pigmentation is due to excess melanin production or accumulation in the skin cells. This is a catch-all category for melanin-related hyperpigmentation that doesn't match more specific diagnostic codes.
Z049Medical visit for examination or observation when the specific reason is not specified
This code is used when you have a medical encounter for examination or observation purposes, but the specific reason for the visit is not specified or documented. It represents a general encounter where healthcare providers are evaluating your condition or monitoring your health status without a clearly defined or documented specific purpose.
Z7409Other reduced mobility not elsewhere classified
This code is used to document situations where a patient has reduced ability to move or get around, but the specific cause or type of mobility limitation doesn't fit into other more specific ICD-10 categories. This is a general code for mobility restrictions that may be due to various physical conditions, injuries, or other factors affecting movement.
R531General weakness or lack of strength
This code represents a general feeling of weakness or reduced strength that affects your ability to perform normal activities. It's a symptom that can have many different causes and may affect your whole body or specific parts. Your healthcare provider will likely investigate the underlying cause of this weakness through additional tests or evaluations.
D72829Higher than normal white blood cell count in the blood
This code indicates that a blood test showed your white blood cell count is elevated above the normal range, but the specific cause or type of elevation has not been determined. White blood cells are part of your immune system that help fight infections and diseases. An elevated count can occur for various reasons including infections, stress, medications, or other medical conditions. Further testing may be needed to determine the underlying cause.
S92902AInitial treatment for a broken bone in the left foot (closed fracture)
This code represents the first medical visit for a fracture (broken bone) somewhere in the left foot where the bone has not broken through the skin (called a 'closed fracture'). The specific location of the break in the foot has not been determined yet, which is why it's labeled as 'unspecified.' This initial encounter typically involves examination, X-rays to identify the exact location and severity of the fracture, pain management, and determining the appropriate treatment plan. The fracture could be in any of the many bones that make up the foot, including the toes, midfoot, or heel area.
Z800Family history of cancer in digestive organs
This code indicates that you have a family history of malignant cancer (malignant neoplasm) affecting digestive organs such as the stomach, intestines, colon, liver, pancreas, or other parts of the digestive system. This code is used to document important family medical history that may influence your healthcare screening, prevention strategies, and risk assessment. Having this family history doesn't mean you will develop cancer, but it may mean your doctor recommends earlier or more frequent screening tests.
R92341Extremely dense breast tissue found on mammogram of the right breast
This code indicates that a mammogram (breast X-ray) showed extremely dense breast tissue in the right breast. Breast density refers to the amount of fibrous and glandular tissue compared to fatty tissue in the breast. Extremely dense breast tissue means there is a high proportion of fibrous and glandular tissue, which appears white on mammograms and can make it more difficult to detect abnormalities. This is a finding about the composition of breast tissue, not a disease or abnormality itself.
Z9841History of cataract surgery on the right eye
This code indicates that you have previously had cataract extraction surgery performed on your right eye. A cataract is a clouding of the natural lens in your eye that can cause blurry vision. Cataract extraction is a common surgical procedure where the cloudy lens is removed and typically replaced with an artificial lens implant. This code is used in medical records to document that this surgery has been completed on your right eye, which is important information for future eye care and medical treatments.
R92343Mammographic finding showing extremely dense breast tissue in both breasts
This code indicates that a mammogram (breast X-ray) has shown extremely dense breast tissue in both breasts. Breast density refers to how much fibrous and glandular tissue there is compared to fatty tissue in the breasts. Extremely dense breasts have very little fatty tissue and are mostly made up of fibrous and glandular tissue. This is a normal variation in breast composition, though denser breast tissue can make it more challenging to detect abnormalities on mammograms and may be associated with slightly higher breast cancer risk. This finding does not indicate the presence of cancer or other disease - it is simply a description of the breast tissue composition seen on the imaging study.
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