Hypothyroidism ICD-11 Codes
All ICD-11 diagnosis codes for hypothyroidism
Hypothyroidism in ICD-11 is classified under 5A00. Autoimmune thyroiditis (Hashimoto's) and other forms of hypothyroidism have specific codes. ICD-11 provides improved classification of thyroid disorders with better specificity.
Primary Codes
These are the main ICD-11 codes for hypothyroidism. Click any code to see all child codes and details.
5A00Hypothyroidism
5A01Nontoxic goitre
5A02Thyrotoxicosis
5A03Thyroiditis
5A04Hypersecretion of calcitonin
5A05Generalised resistance to thyroid hormone
5A06Sick-euthyroid syndrome
5A0YOther specified disorders of the thyroid gland or thyroid hormones system
5A0ZDisorders of the thyroid gland or thyroid hormones system, unspecified
Specific Codes (41)
More specific ICD-11 codes for hypothyroidism.
5A00.0Congenital hypothyroidism
5A00.00Permanent congenital hypothyroidism with diffuse goitre
5A00.01Permanent congenital hypothyroidism without goitre
5A00.02Pendred syndrome
5A00.03Transient congenital hypothyroidism
5A00.04Congenital hypothyroidism due to iodine deficiency
5A00.0YOther specified congenital hypothyroidism
5A00.0ZCongenital hypothyroidism, unspecified
5A00.1Iodine-deficiency-related thyroid disorders or allied conditions
5A00.10Iodine-deficiency-related diffuse goitre
5A00.11Iodine-deficiency-related multinodular goitre
5A00.1ZIodine-deficiency-related thyroid disorders or allied conditions, unspecified
5A00.2Acquired hypothyroidism
5A00.20Hypothyroidism due to medicaments or other exogenous substances
5A00.21Myxoedema coma
5A00.22Subclinical iodine-deficiency hypothyroidism
5A00.2YOther specified acquired hypothyroidism
5A00.2ZAcquired hypothyroidism, unspecified
5A00.ZHypothyroidism, unspecified
5A01.0Nontoxic diffuse goitre
5A01.1Nontoxic single thyroid nodule
5A01.2Nontoxic multinodular goitre
5A01.ZNontoxic goitre, unspecified
5A02.0Thyrotoxicosis with diffuse goitre
5A02.1Thyrotoxicosis with toxic single thyroid nodule
5A02.2Thyrotoxicosis with toxic multinodular goitre
5A02.3Thyrotoxicosis from ectopic thyroid tissue
5A02.4Thyrotoxicosis factitia
5A02.5Thyroid crisis
5A02.6Secondary hyperthyroidism
5A02.YOther specified thyrotoxicosis
5A02.ZThyrotoxicosis, unspecified
5A03.0Acute thyroiditis
5A03.1Subacute thyroiditis
5A03.2Autoimmune thyroiditis
5A03.20Hashimoto thyroiditis
5A03.21Painless thyroiditis
5A03.2YOther specified autoimmune thyroiditis
5A03.2ZAutoimmune thyroiditis, unspecified
5A03.YOther specified thyroiditis
5A03.ZThyroiditis, unspecified
Frequently Asked Questions
What is the ICD-11 code for hypothyroidism?
The primary ICD-11 codes for hypothyroidism are 5A00, 5A01. There are 50 total codes related to hypothyroidism in the ICD-11 classification.
How many ICD-11 codes are there for hypothyroidism?
There are 50 ICD-11 codes related to hypothyroidism. The primary codes are 5A00, 5A01, with additional specific codes for subtypes and complications.
What is the ICD-11 equivalent of ICD-10 hypothyroidism codes?
The ICD-11 equivalent codes for hypothyroidism are 5A00, 5A01. Note that ICD-10 and ICD-11 do not always have one-to-one mappings. Use the ICD-10 to ICD-11 crosswalk tool for exact code conversions.
What are other names for hypothyroidism in ICD-11?
Hypothyroidism may also be referred to as: hypothyroidism, underactive thyroid, low thyroid, Hashimoto's. The same ICD-11 codes apply regardless of which clinical term is used in the documentation.
Should I use ICD-10 or ICD-11 codes for hypothyroidism?
The choice between ICD-10 and ICD-11 depends on your country and regulatory requirements. The United States currently uses ICD-10-CM for clinical billing, while ICD-11 is the WHO standard adopted by many countries starting from 2022. Use our crosswalk tools to convert between systems.
Automate Medical Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 and ICD-11 codes with confidence scores. Integrates into any EHR or billing system in minutes.