ICD-10: E83.51

Hypocalcemia

Additional Information

Description

Hypocalcemia, classified under the ICD-10-CM code E83.51, refers to a condition characterized by abnormally low levels of calcium in the blood. This condition can have significant clinical implications, as calcium plays a crucial role in various physiological processes, including muscle contraction, nerve transmission, and blood coagulation.

Clinical Description of Hypocalcemia

Definition and Causes

Hypocalcemia is defined as a serum calcium level below the normal range, which is typically between 8.5 to 10.2 mg/dL (2.12 to 2.55 mmol/L) in adults. The condition can arise from various underlying causes, including:

  • Hypoparathyroidism: Insufficient production of parathyroid hormone (PTH), which regulates calcium levels.
  • Vitamin D Deficiency: Vitamin D is essential for calcium absorption in the intestines; its deficiency can lead to decreased calcium levels.
  • Chronic Kidney Disease: Impaired kidney function can disrupt calcium and phosphate balance.
  • Medications: Certain drugs, such as bisphosphonates and some anticonvulsants, can affect calcium metabolism.
  • Acute Pancreatitis: Inflammation of the pancreas can lead to fat saponification, which binds calcium and reduces its availability in the bloodstream.

Symptoms

The clinical manifestations of hypocalcemia can vary widely, ranging from mild to severe symptoms. Common symptoms include:

  • Neuromuscular Symptoms: Muscle cramps, spasms, and tetany (involuntary muscle contractions).
  • Paresthesia: Tingling sensations, particularly around the mouth and in the extremities.
  • Cardiovascular Symptoms: Prolonged QT interval on an electrocardiogram (ECG), which can lead to arrhythmias.
  • Cognitive Symptoms: Confusion, irritability, and in severe cases, seizures.

Diagnosis

Diagnosis of hypocalcemia typically involves:

  • Serum Calcium Measurement: A blood test to measure total and ionized calcium levels.
  • Assessment of Parathyroid Hormone Levels: To determine if hypoparathyroidism is present.
  • Vitamin D Levels: To assess for deficiency.
  • Phosphate Levels: To evaluate for related disorders.

Treatment

Management of hypocalcemia depends on the underlying cause and severity of the condition. Treatment options may include:

  • Calcium Supplements: Oral or intravenous calcium may be administered to quickly restore calcium levels.
  • Vitamin D Supplementation: To enhance calcium absorption from the gastrointestinal tract.
  • Addressing Underlying Conditions: Such as treating hypoparathyroidism or managing chronic kidney disease.

Conclusion

Hypocalcemia, represented by the ICD-10-CM code E83.51, is a significant clinical condition that requires careful diagnosis and management. Understanding its causes, symptoms, and treatment options is essential for healthcare providers to effectively address this potentially life-threatening disorder. Regular monitoring and appropriate interventions can help mitigate the risks associated with low calcium levels and improve patient outcomes.

Clinical Information

Hypocalcemia, classified under ICD-10 code E83.51, refers to a condition characterized by low levels of calcium in the blood. Understanding its clinical presentation, signs, symptoms, and patient characteristics is crucial for effective diagnosis and management.

Clinical Presentation of Hypocalcemia

Hypocalcemia can manifest in various ways, depending on the severity and duration of the calcium deficiency. The clinical presentation may include:

  • Neuromuscular Symptoms: Patients often experience muscle cramps, spasms, or tetany, which is a condition marked by involuntary muscle contractions. These symptoms can be particularly pronounced in the hands and feet, leading to a characteristic posture known as "carpopedal spasm"[2][10].

  • Neurological Symptoms: Patients may report numbness and tingling sensations, particularly around the mouth and in the extremities. Severe cases can lead to seizures or altered mental status, including confusion or irritability[11][12].

  • Cardiovascular Symptoms: Hypocalcemia can affect cardiac function, leading to prolonged QT intervals on an electrocardiogram (ECG), which increases the risk of arrhythmias. Patients may also experience palpitations or hypotension[10][11].

  • Dermatological Symptoms: In some cases, patients may present with dry skin, brittle nails, or hair loss, which can be indicative of chronic calcium deficiency[11].

Signs of Hypocalcemia

Healthcare providers may observe several physical signs during a clinical examination, including:

  • Chvostek's Sign: Tapping on the facial nerve (just in front of the ear) may elicit a twitching of the facial muscles, indicating neuromuscular excitability due to low calcium levels[10][11].

  • Trousseau's Sign: Inflating a blood pressure cuff above the systolic pressure for several minutes may induce carpopedal spasm, further confirming hypocalcemia[10][11].

  • Other Signs: Patients may exhibit signs of increased neuromuscular irritability, such as hyperreflexia or clonus, which are indicative of heightened excitability of the nervous system[11].

Symptoms of Hypocalcemia

The symptoms of hypocalcemia can vary widely among individuals, but common complaints include:

  • Muscle Cramps and Spasms: Often the first symptoms noticed by patients, these can occur spontaneously or be triggered by activity[2][10].

  • Numbness and Tingling: Patients frequently report paresthesia, particularly in the fingers, toes, and around the mouth[11].

  • Fatigue and Weakness: Generalized weakness and fatigue are common, which can affect daily activities and overall quality of life[11].

  • Seizures: In severe cases, hypocalcemia can lead to seizures, particularly in patients with rapid drops in calcium levels[11][12].

Patient Characteristics

Certain patient populations are more susceptible to hypocalcemia, including:

  • Postmenopausal Women: Due to decreased estrogen levels, which can affect calcium metabolism and bone density, postmenopausal women are at higher risk[11].

  • Patients with Chronic Kidney Disease: Uremic patients often experience disturbances in calcium and phosphate metabolism, leading to hypocalcemia[3][10].

  • Individuals with Malabsorption Syndromes: Conditions such as celiac disease or chronic pancreatitis can impair calcium absorption, increasing the risk of hypocalcemia[11].

  • Patients on Certain Medications: Long-term use of medications such as bisphosphonates, anticonvulsants, or certain diuretics can contribute to lower calcium levels[11][12].

Conclusion

Hypocalcemia, represented by ICD-10 code E83.51, presents a range of clinical manifestations that can significantly impact patient health. Recognizing the signs and symptoms, along with understanding the characteristics of at-risk populations, is essential for timely diagnosis and effective management. Clinicians should remain vigilant for these presentations, particularly in patients with known risk factors, to prevent complications associated with this condition.

Approximate Synonyms

Hypocalcemia, classified under the ICD-10-CM code E83.51, refers to a condition characterized by low levels of calcium in the blood. Understanding alternative names and related terms for this condition can enhance clarity in medical documentation and communication. Below are some of the key alternative names and related terms associated with hypocalcemia.

Alternative Names for Hypocalcemia

  1. Low Calcium Levels: This term is often used in clinical settings to describe the condition in layman's terms.
  2. Hypocalcaemia: This is the British English spelling of hypocalcemia, commonly used in the UK and other countries.
  3. Calcium Deficiency: This term emphasizes the lack of calcium in the body, which can lead to various health issues.
  4. Calcium Imbalance: This phrase may be used to describe the broader context of calcium metabolism disorders, including hypocalcemia.
  1. Hypoparathyroidism: A condition that can lead to hypocalcemia due to insufficient production of parathyroid hormone, which regulates calcium levels in the blood[1].
  2. Vitamin D Deficiency: Low levels of vitamin D can contribute to hypocalcemia, as vitamin D is crucial for calcium absorption in the intestines[2].
  3. Calcium Metabolism Disorders: This broader category includes various conditions affecting calcium levels, including both hypocalcemia and hypercalcemia (high calcium levels) under the ICD-10 code E83.5[3].
  4. Ionized Calcium: Refers to the biologically active form of calcium in the blood, which is often measured to assess calcium status and diagnose hypocalcemia[4].
  5. Secondary Hyperparathyroidism: This condition can occur as a compensatory response to chronic hypocalcemia, where the parathyroid glands produce excess hormone to try to raise calcium levels[5].

Conclusion

Understanding the alternative names and related terms for hypocalcemia is essential for accurate diagnosis, treatment, and communication among healthcare professionals. These terms not only facilitate better patient understanding but also enhance the precision of medical records and billing practices. If you need further information on the implications of hypocalcemia or its management, feel free to ask!

Diagnostic Criteria

Hypocalcemia, classified under ICD-10-CM code E83.51, refers to a condition characterized by low levels of calcium in the blood. The diagnosis of hypocalcemia involves several criteria and considerations, which can be categorized into clinical evaluation, laboratory tests, and underlying causes.

Clinical Evaluation

  1. Symptoms: Patients may present with a variety of symptoms that can indicate hypocalcemia. Common symptoms include:
    - Muscle cramps or spasms (tetany)
    - Numbness or tingling, particularly around the mouth and in the extremities
    - Seizures in severe cases
    - Cardiac arrhythmias
    - Fatigue and weakness

  2. Medical History: A thorough medical history is essential. Clinicians will assess for:
    - Previous diagnoses of conditions affecting calcium metabolism, such as hypoparathyroidism or vitamin D deficiency.
    - Medications that may influence calcium levels, including diuretics or certain anticonvulsants.
    - Dietary habits that may lead to calcium deficiency.

Laboratory Tests

  1. Serum Calcium Levels: The primary diagnostic criterion for hypocalcemia is a serum calcium level below the normal range, typically defined as less than 8.5 mg/dL (2.12 mmol/L). This measurement can be affected by various factors, including:
    - Total serum calcium vs. ionized calcium: Ionized calcium is the biologically active form and may be measured if total calcium levels are borderline.

  2. Additional Tests: To understand the underlying cause of hypocalcemia, additional tests may be performed, including:
    - Serum albumin levels: Since calcium binds to albumin, low albumin levels can falsely lower total calcium readings.
    - Parathyroid hormone (PTH) levels: Low PTH levels can indicate hypoparathyroidism, while high levels may suggest vitamin D deficiency or other causes.
    - Vitamin D levels: Assessing 25-hydroxyvitamin D can help determine if deficiency is contributing to low calcium levels.
    - Phosphate levels: Hyperphosphatemia can be associated with hypocalcemia, particularly in renal failure.

Underlying Causes

Identifying the underlying cause of hypocalcemia is crucial for effective management. Common causes include:
- Hypoparathyroidism: A condition where the parathyroid glands do not produce enough PTH, leading to decreased calcium levels.
- Vitamin D Deficiency: Insufficient vitamin D can impair calcium absorption from the gut.
- Chronic Kidney Disease: Impaired renal function can lead to altered calcium and phosphate metabolism.
- Medications: Certain drugs, such as bisphosphonates or proton pump inhibitors, can affect calcium levels.

Conclusion

The diagnosis of hypocalcemia (ICD-10 code E83.51) is based on a combination of clinical symptoms, laboratory findings, and an understanding of potential underlying causes. Accurate diagnosis is essential for appropriate treatment and management of the condition, which may involve supplementation of calcium and vitamin D, addressing underlying disorders, or adjusting medications as necessary. Regular monitoring and follow-up are also important to ensure effective management of hypocalcemia and its associated risks.

Treatment Guidelines

Hypocalcemia, classified under ICD-10 code E83.51, refers to a condition characterized by low levels of calcium in the blood. This condition can arise from various underlying causes, including vitamin D deficiency, hypoparathyroidism, chronic kidney disease, and certain medications. The management of hypocalcemia typically involves addressing the underlying cause and restoring normal calcium levels. Below is a detailed overview of standard treatment approaches for hypocalcemia.

Diagnosis and Initial Assessment

Before initiating treatment, a thorough assessment is essential. This includes:

  • Medical History: Understanding the patient's medical history, including any underlying conditions such as kidney disease or parathyroid disorders.
  • Physical Examination: Checking for symptoms of hypocalcemia, which may include muscle cramps, tingling in the fingers, and seizures.
  • Laboratory Tests: Confirming low serum calcium levels through blood tests, along with measuring levels of parathyroid hormone (PTH), vitamin D, and magnesium, as these can influence calcium metabolism[1].

Treatment Approaches

1. Calcium Supplementation

The primary treatment for hypocalcemia is calcium supplementation. This can be administered in various forms:

  • Oral Calcium Supplements: For mild cases, oral calcium carbonate or calcium citrate is often prescribed. The dosage typically ranges from 1,000 to 1,500 mg of elemental calcium per day, divided into multiple doses to enhance absorption[2].
  • Intravenous Calcium: In cases of severe hypocalcemia or when oral supplementation is not feasible (e.g., due to gastrointestinal issues), intravenous calcium gluconate or calcium chloride may be administered. This is particularly critical in acute settings, such as post-surgical hypoparathyroidism or severe symptomatic hypocalcemia[3].

2. Vitamin D Supplementation

Vitamin D plays a crucial role in calcium absorption. Therefore, supplementation may be necessary, especially if the hypocalcemia is related to vitamin D deficiency:

  • Cholecalciferol (Vitamin D3) or Ergocalciferol (Vitamin D2) can be prescribed. The dosage depends on the severity of the deficiency and the patient's overall health status. For example, high-dose vitamin D may be given initially, followed by maintenance doses[4].

3. Addressing Underlying Causes

Effective management of hypocalcemia also involves treating any underlying conditions:

  • Hypoparathyroidism: If hypocalcemia is due to hypoparathyroidism, patients may require lifelong calcium and vitamin D supplementation, and in some cases, recombinant PTH therapy may be indicated[5].
  • Chronic Kidney Disease: In patients with renal impairment, managing phosphate levels and using active forms of vitamin D (like calcitriol) can help improve calcium levels[6].

4. Monitoring and Follow-Up

Regular monitoring of serum calcium levels is essential to ensure that treatment is effective and to adjust dosages as necessary. Follow-up appointments should include:

  • Repeat Blood Tests: To monitor calcium, vitamin D, and PTH levels.
  • Assessment of Symptoms: Evaluating the patient for any recurrence of symptoms related to hypocalcemia.

Conclusion

The management of hypocalcemia (ICD-10 code E83.51) involves a multifaceted approach that includes calcium and vitamin D supplementation, addressing underlying causes, and regular monitoring. By tailoring treatment to the individual patient's needs and underlying conditions, healthcare providers can effectively restore calcium levels and alleviate symptoms. Continuous education about dietary sources of calcium and vitamin D is also beneficial for long-term management and prevention of recurrence[7].

For patients experiencing symptoms of hypocalcemia or those at risk, timely medical evaluation and intervention are crucial to prevent complications associated with this condition.

Related Information

Description

  • Abnormally low blood calcium levels
  • Low serum calcium level below normal range
  • Insufficient parathyroid hormone production
  • Vitamin D deficiency causes decreased absorption
  • Chronic kidney disease disrupts calcium balance
  • Certain medications affect calcium metabolism
  • Inflammation of pancreas reduces available calcium
  • Muscle cramps and spasms due to low calcium
  • Tingling sensations in extremities and mouth
  • Prolonged QT interval on electrocardiogram
  • Confusion, irritability, and seizures in severe cases
  • Blood test measures total and ionized calcium levels
  • Assess parathyroid hormone levels for hypoparathyroidism
  • Evaluate vitamin D levels for deficiency
  • Phosphate levels assess related disorders

Clinical Information

  • Muscle cramps and spasms common
  • Neuromuscular symptoms can be severe
  • Cardiovascular symptoms include arrhythmias
  • Prolonged QT intervals on ECG
  • Seizures possible in severe cases
  • Numbness and tingling sensations occur
  • Tetany a characteristic posture
  • Chvostek's Sign indicates neuromuscular excitability
  • Trousseau's Sign confirms hypocalcemia
  • Dry skin, brittle nails, or hair loss possible
  • Hyperreflexia or clonus indicative of heightened nervous system irritability
  • Fatigue and weakness common symptoms
  • Postmenopausal women at higher risk
  • Patients with chronic kidney disease susceptible
  • Individuals with malabsorption syndromes at risk

Approximate Synonyms

  • Low Calcium Levels
  • Hypocalcaemia
  • Calcium Deficiency
  • Calcium Imbalance
  • Hypoparathyroidism
  • Vitamin D Deficiency
  • Ionized Calcium

Diagnostic Criteria

  • Low serum calcium levels below 8.5 mg/dL
  • Muscle cramps or spasms (tetany)
  • Numbness or tingling in extremities
  • Seizures in severe cases
  • Cardiac arrhythmias
  • Fatigue and weakness
  • Previous hypoparathyroidism diagnosis
  • Vitamin D deficiency
  • Chronic kidney disease
  • Certain medications (diuretics, anticonvulsants)
  • Low parathyroid hormone levels

Treatment Guidelines

  • Restore normal calcium levels
  • Address underlying cause
  • Oral calcium supplements (1,000-1,500 mg/day)
  • Intravenous calcium in severe cases
  • Vitamin D supplementation (cholecalciferol or ergocalciferol)
  • Manage chronic kidney disease with phosphate control and active vitamin D
  • Monitor serum calcium levels regularly

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