2024 ICD-10-CM Diagnosis Code E06.3

Approximate Synonyms

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

• Acquired ataxia
• Autoimmune hypothyroidism
• Autoimmune movement disorder
• Autoimmune thyroiditis
• Autoimmune thyroiditis
• Chronic thyroiditis
• Dementia due to autoimmune encephalitis
• Dementia due to Hashimoto encephalopathy
• Fibrous autoimmune thyroiditis
• Hashimoto thyroiditis
• Hashitoxicosis - transient
• Hyperthyroidism with Hashimoto disease
• Hypothyroidism due to Hashimoto's thyroiditis
• Primary hypothyroidism
• Restrictive ophthalmopathy
• Steroid-responsive encephalopathy associated with autoimmune thyroiditis
• Subacute autoimmune thyroiditis
• Subacute thyroiditis
• Thyroid eye disease

Clinical Information

• Iatrogenic Primary Hypothyroidism

  primary hypothyroidism due to medical or surgical treatment.

• Primary Hypothyroidism

  abnormally low levels of thyroid hormones due to a disorder originating within the thyroid gland.

• Transient Primary Hypothyroidism

  primary hypothyroidism that resolves spontaneously.

Convert E06.3 to ICD-9-CM

• ICD-9-CM Code: 245.2 - Chr lymphocyt thyroidit

Patient Education

Thyroid Diseases

Your thyroid is a small, butterfly-shaped gland in the front of your neck. It makes hormones that control the way the body uses energy. These hormones affect nearly every organ in your body and control many of your body's most important functions. For example, they affect your breathing, heart rate, weight, digestion, and moods.

Thyroid diseases cause your thyroid to make either too much or too little of the hormones. Some of the different thyroid diseases include:

• Goiter, an enlargement of the thyroid gland
• Hyperthyroidism, which happens when your thyroid gland makes more thyroid hormones than your body needs
• Hypothyroidism, which happens when your thyroid gland does not make enough thyroid hormones
• Thyroid cancer
• Thyroid nodules, lumps in the thyroid gland
• Thyroiditis, swelling of the thyroid

To diagnose thyroid diseases, your health care provider may use a medical history, physical exam, and thyroid tests. In some cases, your provider may also do a biopsy.

Treatment depends on the problem, how severe it is, and what your symptoms are. Possible treatments may include medicines, radioiodine therapy, or thyroid surgery.

Dept. of Health and Human Services Office on Women's Health

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Hashimoto's disease

Hashimoto's disease is a condition that affects the function of the thyroid, which is a butterfly-shaped gland in the lower neck. The thyroid makes hormones that help regulate a wide variety of critical body functions. For example, thyroid hormones influence growth and development, body temperature, heart rate, menstrual cycles, and weight. Hashimoto's disease is a form of chronic inflammation that can damage the thyroid, reducing its ability to produce hormones.

One of the first signs of Hashimoto's disease is an enlargement of the thyroid called a goiter. Depending on its size, the enlarged thyroid can cause the neck to look swollen and may interfere with breathing and swallowing. As damage to the thyroid continues, the gland can shrink over a period of years and the goiter may eventually disappear.

Other signs and symptoms resulting from an underactive thyroid can include excessive tiredness (fatigue), weight gain or difficulty losing weight, hair that is thin and dry, a slow heart rate, joint or muscle pain, and constipation. People with Hashimoto's disease may also have a pale, puffy face and feel cold even when others around them are warm. Affected women can have heavy or irregular menstrual periods and difficulty conceiving a child (impaired fertility). Difficulty concentrating and depression can also be signs of a shortage of thyroid hormones.

Hashimoto's disease usually appears in mid-adulthood, although it can occur earlier or later in life. Its signs and symptoms tend to develop gradually over months or years.

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Hashimoto's Disease

Overview of Hashimoto’s disease, an autoimmune disorder that can cause hypothyroidism.
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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.