Endocrinology is a medical specialty that diagnoses and treats hormone, metabolism, and endocrine system issues. It involves the pineal, thyroid, parathyroid, thymus, adrenal, pancreatic, ovarian, and testicular glands.

The endocrine system’s medical terms are classified into illnesses, disorders, diagnostic treatments, and surgeries. Endocrine system disorders, metabolic issues, and nutritional deficiency disorders are some of the conditions. For effective Endocrinology billing and payment, precise documentation and categorization of the services rendered are essential, as in any medical specialty.

This article overviews the most significant CPT codes used in endocrinology.

CPT codes description for Endocrinology

84443 – Thyroid-stimulating hormone (TSH)

The lab analyst measures thyroid-stimulating hormone (TSH). This hormone regulates thyroid function and is produced by the pituitary gland.

83003 – Tests for gonadotropin-releasing hormone (GnRH)

The lab analyst commonly uses a serum sample to assess the HGH level. Clinicians request measurements of human growth hormone primarily to evaluate growth, particularly in children and adolescents, and to research both dwarfism and acromegaly or gigantism, as well as small height.

84439 – T4 test for thyroxine

The lab analyst does a test to determine the amount of free thyroxine, or free T4, usually present in the patient’s serum. Thyroid glands with low T4 levels are underactive, whereas those with high T4 levels are hyperactive.

84481 – Triiodothyronine (T3) total or free

Triiodothyronine (T3) levels can be calculated using this code’s total or free variants. T3, generated by the thyroid gland, regulates energy generation and metabolism.

85025 – CBC (complete blood count) test

A physician may perform a complete blood count (CBC) to identify a patient’s blood cell types. A technician or pathologist usually conducts the exam and gives the doctor who requested the CBC results.

80061 – Lipid profile examination

The lab analyst conducts a lipid panel test to determine the blood’s triglyceride and cholesterol concentration.

82310 – The calcium check

Using primarily a serum sample, the lab analyst evaluates the calcium level. Elevated calcium levels may indicate hypercalcemia, which can be detrimental and potentially fatal.

81479 – Unlisted molecule pathology technique

This code is applied to laboratory tests that are not otherwise covered by another CPT code. This code may be used for tests, including molecular pathology techniques for endocrine illnesses like neuroendocrine tumors.

82306 – Test for vitamin D

Vitamin D levels are usually measured by lab analysts using serum samples. The liver produces vitamin D, a steroid hormone. Since sunlight on the skin is its primary source, it’s called the “sunshine vitamin.”

84702 – Tests for gonadotropins

The lab analyst carries out the technical lab test to determine how much hCG, also known as beta hCG, is present in the patient’s blood to confirm or monitor pregnancy or to identify specific testicular or ovarian malignancies.

82947 – Quantitative blood glucose

The CPT code 82947 is used to test blood glucose levels. This examination evaluates blood sugar control and spots conditions like diabetes and hypoglycemia. Endocrinologists, family practitioners, and other healthcare professionals frequently prescribe it.

84482 – Total or free thyroxine (T4)

A person’s blood level of free or total thyroxine (T4) is determined by this code. The portion of T4 in the blood that isn’t bound to proteins is called “free T4” and is regarded as the hormone’s active form.

96401 – Intramuscular or subcutaneous chemotherapy

This code is utilized to specify chemotherapeutic drug injections administered subcutaneously or intramuscularly. Chemotherapy for various cancer types is typically administered in this manner.

96372 – Injection used for treatment, prevention, or diagnosis

CPT Code 96372 documents therapeutic, preventive, or diagnostic injections a medical professional administers. The injection can be administered into a muscle, subcutaneous tissue, or vein. Vaccinations, common medications, and chemical injections are typically covered under the code.

76536 – thyroid imaging

This code documents ultrasonography of the thyroid. Sound waves are used during an ultrasound to create a picture of the thyroid gland and its environs. It could aid in identifying anomalies such as thyroid nodules and cysts.

78070 – Parathyroid scans

Utilizing this code allows you to report imaging examinations that look at the parathyroid glands. It might include imaging techniques, MRIs, nuclear medicine scans, and ultrasounds.

77080 – Bone density evaluation

This code is used to report a bone density examination known as a DEXA scan. It measures bone density and diagnoses osteoporosis.

72158 – Pituitary imaging

This code reports MRI-based pituitary gland research. The MRI may provide detailed images of the pituitary gland and its surroundings using powerful magnets and radio waves. It can detect pituitary gland cysts, cancers, and other abnormalities.


Endocrinology medical billing and coding experts must be familiar with prevalent CPT codes to guarantee correct and prompt compensation. Learning the most frequently used codes, such as those for managing diabetes and hormone replacement treatment, helps simplify the billing process and increase overall effectiveness. Additionally, maintaining compliance and avoiding costly mistakes require remaining current with changes to CPT codes and recommendations.

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