ICD 10 Code For Hypothyroidism – E03

In the world of healthcare, ICD 10 (International Classification of Diseases, Tenth Revision) is a major update that took effect in 2015. With this new code came a number of changes for companies involved in healthcare, including physicians and hospitals. One of the most important changes for hospitals is the addition of a new code for hypothyroidism. If you’re an individual with this condition, or if you work in the healthcare industry and encounter patients with this condition, now is the time to be familiar with ICD 10 code descriptions and proper treatment protocols.

What is ICD 10?

ICD 10 is the international classification of diseases, developed by the World Health Organization. It is a standard way of classifying illnesses and can be used to code medical data.

There are a number of different ICD codes that may be used to code hypothyroidism, depending on the specific symptoms and complications that the patient experiences.

Some common ICD 10 codes for hypothyroidism include:

  • E03.0Congenital hypothyroidism with diffuse goitre

Goitre (nontoxic) congenital:

  • NOS
  • parenchymatous
(P72.0)transitory congenital goitre with normal function
  • E03.1Congenital hypothyroidism without goitre

Aplasia of thyroid (with myxoedema)Congenital:

  • atrophy of thyroid
  • hypothyroidism NOS
  • E03.2Hypothyroidism due to medicaments and other exogenous substances

Use additional external cause code (Chapter XX), if desired, to identify cause.

  • E03.3Postinfectious hypothyroidism
  • E03.4Atrophy of thyroid (acquired)
congenital atrophy of thyroid(E03.1)
  • E03.5Myxoedema coma
  • E03.8Other specified hypothyroidism
  • E03.9Hypothyroidism, unspecified (Myxoedema NOS)

What is the ICD 10 Code For Hypothyroidism?

ICD 10 Code For Hypothyroidism - E03

The ICD 10 code for hypothyroidism is E03. This code indicates an underlying medical condition, which in this case is a problem with the thyroid gland. The thyroid gland is responsible for regulating the body’s metabolism and growth, and when it doesn’t work properly, symptoms can develop. In most cases, hypothyroidism is caused by an autoimmune disorder, which means the body’s immune system attacks the thyroid gland. Treatment typically involves medication to lower the levels of thyroid hormone and/or surgery to remove the affected gland.

Iodine-deficiency-related hypothyroidism(E00-E02)
Postprocedural hypothyroidism(E89.0)

What are the different types of ICD 10 codes for hypothyroidism?

The ICD 10 code for hypothyroidism is E03. This code indicates that a patient has a disorder that affects the thyroid gland.

What are the treatments for hypothyroidism?

There are many treatments for hypothyroidism depending on the underlying cause. Symptomatic treatment with levothyroxine (LT4) or a T3 replacement such as liothyronine (LT3) is used to restore thyroid function. If the cause is unknown, surgery may be necessary to remove a tumor or other obstruction. Radiation therapy and chemotherapy can also be used if the cause is cancer.


If you are experiencing symptoms of hypothyroidism, it is important to seek medical attention. The ICD 10 code for hypothyroidism is E03, and this code can be used when other conditions cannot be confirmed or when the cause of the symptoms is unknown. If left untreated, hypothyroidism can lead to serious health issues such as weight gain, depression, fatigue, constipation and more. Make sure to speak with your doctor about whether a diagnosis of hypothyroidism is warranted and get started on treatment as soon as possible!

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