Endocrinology – Thyroid ICD Coding

UT SOUTHWESTERN MEDICAL CENTER AT DALLAS

Division of Endocrinology Thyroid ICD Coding

240 Simple and unspecified goiter 240.0 Goiter, specified as simple Any condition classifiable to 240.9, specified as simple 240.9 Goiter, unspecified Enlargement of thyroid Goiter or struma: NOS Diffuse colloid Endemic Hyperplastic

Nontoxic (diffuse) Parenchymatous Sporadic

Excludes: congenital (dyshormonogenic) goiter (246.1) 241 Nontoxic nodular goiter Excludes: adenoma of thyroid (226) Cystadenoma of thyroid (226) 241.0 Nontoxic uninodular goiter Thyroid nodule

Uninodular goiter (nontoxic) 241.1 Nontoxic multinodular goiter

Multinodular goiter (nontoxic) 241.9 Unspecified nontoxic nodular goiter

Adenomatous goiter Nodular goiter (nontoxic) NOS Struma nodosa (simplex)

242 Thyrotoxicosis with or without goiter Excludes: neonatal thyrotoxicosis (775.3) The following fifth-digit subclassification is for use

with category 242:

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Endocrinology – Thyroid ICD Coding

0 without mention of thyrotoxic crisis or storm 1 with mention of thyrotoxic crisis or storm

242.0 Toxic diffuse goiter Basedow's disease Exophthalmic or toxic goiter NOS Graves' disease

Primary thyroid hyperplasia 242.1 Toxic uninodular goiter

Thyroid nodule, toxic or with hyperthyroidism Uninodular goiter, toxic or with hyperthyroidism

242.2 Toxic multinodular goiter Secondary thyroid hyperplasia

242.3 Toxic nodular goiter, unspecified Adenomatous goiter, toxic or with hyperthyroidism Nodular goiter, toxic or with hyperthyroidism Struma nodosa, toxic or with hyperthyroidism Any condition classifiable to 241.9 specified as toxic or

with hyperthyroidism 242.4 Thyrotoxicosis from ectopic thyroid nodule

242.8 Thyrotoxicosis of other specified origin Overproduction of thyroid-stimulating hormone [TSH] Thyrotoxicosis: Factitia from ingestion of excessive thyroid material

Use additional E code to identify cause, if drug-induced

242.9 Thyrotoxicosis without mention of goiter or other cause Hyperthyroidism NOS

Thyrotoxicosis NOS

243 Congenital Hypothyroidism Congenital thyroid insufficiency Cretinism (athyrotic) (endemic)

Use additional code to identify associated mental retardation Excludes: congenital (dyshormonogenic) goiter (246.1)

244 Acquired Hypothyroidism Includes: athyroidism (acquired) Hypothyroidism (acquired) Myxedema (adult) (juvenile) Thyroid (gland) insufficiency (acquired)

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Endocrinology – Thyroid ICD Coding

244.0 Postsurgical hypothyroidism 244.1 Other postablative hypothyroidism

Hypothyroidism following therapy, such as irradiation 244.2 Iodine hypothyroidism

Hypothyroidism resulting from administration or ingestion of iodide Use additional E code to identify drug

244.3 Other iatrogenic hypothyroidism Hypothyroidism resulting from: P-aminosalicylic acid [PAS] Phenylbutazone Resorcinol Iatrogenic hypothyroidism NOS

Use additional E code to identify drug 244.8 Other specified acquired hypothyroidism

Secondary hypothyroidism NEC 244.9 Unspecified hypothyroidism

Hypothyroidism, primary or NOS Myxedema, primary or NOS

245 Thyroiditis 245.0 Acute thyroiditis

Abscess of thyroid Thyroiditis:

Nonsuppurative, acute Pyogenic Suppurative

Use additional code to identify organism 245.1 Subacute thyroiditis

Thyroiditis: De Quervain's Giant cell Granulomatous Viral

245.2 Chronic lymphocytic thyroiditis Hashimoto's disease Struma lymphomatosa Thyroiditis:

Autoimmune Lymphocytic (chronic)

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Endocrinology – Thyroid ICD Coding

245.3 Chronic fibrous thyroiditis Struma fibrosa Thyroiditis: Invasive (fibrous) Ligneous Riedel's

245.4 Iatrogenic thyroiditis Use additional E code to identify cause

245.8 Other and unspecified chronic thyroiditis Chronic thyroiditis: NOS nonspecific

245.9 Thyroiditis, unspecified Thyroiditis NOS

246 Other disorders of thyroid 246.0 Disorders of thyrocalcitonin secretion Hypersecretion of calcitonin or thyrocalcitonin 246.1 Dyshormonogenic goiter

Congenital (dyshormonogenic) goiter Goiter due to enzyme defect in synthesis of thyroid hormone Goitrous cretinism (sporadic)

246.2 Cyst of thyroid Excludes: cystadenoma of thyroid (226)

246.3 Hemorrhage and infarction of thyroid 246.8 Other specified disorders of thyroid

Abnormality of thyroid-binding globulin Atrophy of thyroid Hyper-TBG-nemia Hypo-TBG-nemia

246.9 Unspecified disorder of thyroid

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