2025 ICD-10-CM Diagnosis Code P71.1

Approximate Synonyms

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.

Clinical Classification

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.

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)

• 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

  death

• 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.

Convert P71.1 to ICD-9-CM

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.

Patient Education

Calcium

What is calcium and why do I need it?

Calcium is a mineral, a nutrient that you need (in small amounts) to keep your body healthy. You have more calcium in your body than any other mineral.

Calcium has many important jobs:

• To build and maintain strong bones. Your body stores almost all of its calcium in your bones and teeth to keep them strong.
• To help your muscles move.
• To help your nerves to carry messages between your brain and the rest of your body.
• To help your blood vessels move blood throughout your body.
• To help release hormones that affect many functions in your body.

Not getting enough calcium can cause several conditions, including:

• Osteoporosis, a disease which can make your bones weaker and more likely to break.
• Rickets, a disease in children that causes soft, weak bones.
• Osteomalacia, a condition which causes soft bones in children and adults.

How do I get calcium?

You can get calcium from foods and supplements. You may be able to get enough calcium by eating a variety of foods, including:

• Dairy products such as milk, cheese, and yogurt. These are the main food sources of calcium for most people in the United States.
• Leafy, green vegetables such as kale, broccoli, and Chinese cabbage (bok choi).
• Fish with soft bones that you can eat, such as canned sardines and salmon.
• Calcium-enriched foods such as breakfast cereals, fruit juices, soy and rice drinks, and tofu. The product labels for these foods will show how much calcium they have.

Calcium is available in supplements. It is also included in many multivitamins. The two main forms of calcium supplements are calcium carbonate and calcium citrate:

• Calcium carbonate is absorbed best when taken with food. Some over-the-counter antacids, such as Tums and Rolaids, also contain calcium carbonate.
• Calcium citrate is absorbed well on an empty stomach or a full stomach. People with low levels of stomach acid absorb calcium citrate more easily than calcium carbonate.

Calcium is absorbed best when you take 500 mg or less at one time. If you are taking more than that amount each day, take a smaller dose twice a day rather than taking it all at once.

Calcium supplements might cause gas, bloating, and constipation in some people. If you have any of these symptoms, you could try:

• Spreading out the calcium dose throughout the day
• Taking it with meals
• Switching the form of calcium you take

How much calcium do I need?

The amount of calcium you need each day depends on your age and other factors. The recommended amounts, in milligrams (mg), are:

• Birth to 6 months: 200 mg
• Infants 7-12 months: 260 mg
• Children 1-3 years: 700 mg
• Children 4-8 years: 1,000 mg
• Children 9-13 years: 1,300 mg
• Teens 14-18 years: 1,300 mg
• Adults 19-50 years: 1,000 mg
• Adult men 51-70 years: 1,000 mg
• Adult women 51-70 years: 1,200 mg
• Adults 71 years and older: 1,200 mg
• Pregnant and breastfeeding teens: 1,300 mg
• Pregnant and breastfeeding adults: 1,000 mg

Certain people may have trouble getting enough calcium, including:

• Children and teens age 4 to 18 years
• People who are Black or Asian
• Adults age 50 years and older living in poverty
• Postmenopausal women; your body absorbs and retains less calcium after menopause
• People who don't drink milk or eat other dairy products

Check with your health care provider to see if you need to take calcium supplements, and if so, how much you should take. Your provider may want to first do a calcium blood test to see if you are getting enough of it.

NIH: National Institutes of Health Office of Dietary Supplements

Uncommon Infant and Newborn Problems

It can be scary when your baby is sick, especially when it is not an everyday problem like a cold or a fever. You may not know whether the problem is serious or how to treat it. If you have concerns about your baby's health, call your health care provider right away.

Learning information about your baby's condition can help ease your worry. Do not be afraid to ask questions about your baby's care. By working together with your health care provider, you make sure that your baby gets the best care possible.

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.