2024 ICD-10-CM Diagnosis Code E83.51


ICD-10-CM Code:
ICD-10 Code for:
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Endocrine, nutritional and metabolic diseases
    • Metabolic disorders
      • Disorders of mineral metabolism

E83.51 is a billable diagnosis code used to specify a medical diagnosis of hypocalcemia. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Chronic myopathy with hypocalcemia and hypophosphatemia
  • Drug-induced hypocalcemia
  • Hypocalcemia
  • Hypocalcemia due to chronic kidney disease
  • Hypocalcemia of late pregnancy and/or lactation
  • Hypocalcemia of late pregnancy and/or lactation
  • Hypocalcemia of puerperium
  • Hypocalcemic rickets
  • Hypocalcemic tetany
  • Hypomagnesemia with secondary hypocalcemia
  • Iatrogenic hypocalcemia
  • Parathyroid hypocalcemic tetany
  • Serum calcium below reference range
  • Serum calcium below reference range
  • Tetany

Clinical Classification

Clinical Information

  • Hypocalcemia

    reduction of the blood calcium below normal. manifestations include hyperactive deep tendon reflexes, chvostek's sign, muscle and abdominal cramps, and carpopedal spasm. (dorland, 27th ed)
  • Tetany

    a disorder characterized by muscle twitches, cramps, and carpopedal spasm, and when severe, laryngospasm and seizures. this condition is associated with unstable depolarization of axonal membranes, primarily in the peripheral nervous system. tetany usually results from hypocalcemia or reduced serum levels of magnesium that may be associated with hyperventilation; hypoparathyroidism; rickets; uremia; or other conditions. (from adams et al., principles of neurology, 6th ed, p1490)
  • Familial Hypercalciuric Hypocalcemia

    a hereditary condition caused by calcium sensing receptor gene mutations, resulting in calcium-hypersensitivity, and compensatory hypocalcemia and hypercalciuria.
  • Grade 1 Hypocalcemia, CTCAE|Grade 1 Hypocalcemia

    corrected serum calcium of
  • Grade 2 Hypocalcemia, CTCAE|Grade 2 Hypocalcemia

    corrected serum calcium of <8.0-7.0 mg/dl; <2.0-1.75 mmol/l; ionized calcium <1.0-0.9 mmol/l; symptomatic
  • Grade 3 Hypocalcemia, CTCAE|Grade 3 Hypocalcemia

    corrected serum calcium of <7.0-6.0 mg/dl; <1.75-1.5 mmol/l; ionized calcium <0.9-0.8 mmol/l; hospitalization indicated
  • Grade 4 Hypocalcemia, CTCAE|Grade 4 Hypocalcemia

    corrected serum calcium of <6.0 mg/dl; <1.5 mmol/l; ionized calcium <0.8 mmol/l; life-threatening consequences
  • Grade 5 Hypocalcemia, CTCAE|Grade 5 Hypocalcemia

  • Hypocalcemia

    lower than normal levels of calcium in the circulating blood.
  • Hypocalcemia, CTCAE|Hypocalcemia|Hypocalcemia

    a disorder characterized by laboratory test results that indicate a low concentration of calcium (corrected for albumin) in the blood.
  • TRPM6 wt Allele|CHAK2|FLJ22628|HMGX|HOMG|HOMG1|HSH|Hypomagnesemia, Secondary Hypocalcemia Gene|Transient Receptor Potential Cation Channel Subfamily M Member 6 wt Allele|Transient Receptor Potential Cation Channel, Subfamily M, Member 6 Gene

    human trpm6 wild-type allele is located in the vicinity of 9q21.13 and is approximately 166 kb in length. this allele, which encodes transient receptor potential cation channel subfamily m member 6 protein, is involved in both magnesium homeostasis and protein phosphorylation. mutation of the gene is associated with hypomagnesemia.
  • Tetany

    sudden and involuntary contraction of a muscle of group of muscles due to hypocalcemia.

Index to Diseases and Injuries References

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).

Convert E83.51 to ICD-9-CM

  • ICD-9-CM Code: 275.41 - Hypocalcemia

Patient Education


You have more calcium in your body than any other mineral. Calcium has many important jobs. The body stores more than 99% of its calcium in the bones and teeth to help make and keep them strong. The rest is throughout the body in blood, muscle and the fluid between cells. Your body needs calcium to help muscles and blood vessels contract and expand, to secrete hormones and enzymes and to send messages through the nervous system.

It is important to get plenty of calcium in the foods you eat. Foods rich in calcium include:

  • Dairy products such as milk, cheese, and yogurt
  • Leafy, green vegetables
  • Fish with soft bones that you eat, such as canned sardines and salmon
  • Calcium-enriched foods such as breakfast cereals, fruit juices, soy and rice drinks, and tofu. Check the product labels.

The exact amount of calcium you need depends on your age and other factors. Growing children and teenagers need more calcium than young adults. Older women need plenty of calcium to prevent osteoporosis. People who do not eat enough high-calcium foods should take a calcium supplement.

NIH: National Institutes of Health Office of Dietary Supplements

[Learn More in MedlinePlus]

Code History

  • 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.


[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.