ICD-10 Diagnosis Code C73

Malignant neoplasm of thyroid gland

Diagnosis Code C73

ICD-10: C73
Short Description: Malignant neoplasm of thyroid gland
Long Description: Malignant neoplasm of thyroid gland
This is the 2018 version of the ICD-10-CM diagnosis code C73

Valid for Submission
The code C73 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Neoplasms (C00–D48)
    • Malignant neoplasms of thyroid and other endocrine glands (C73-C75)
      • Malignant neoplasm of thyroid gland (C73)

Information for Medical Professionals

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 193 - Malign neopl thyroid

  • Anaplastic thyroid carcinoma
  • Diffuse sclerosing papillary thyroid carcinoma
  • Follicular neoplasm of thyroid
  • Follicular thyroid carcinoma
  • Hurthle cell carcinoma of thyroid
  • Local recurrence of malignant tumor of thyroid gland
  • Malignant epithelial neoplasm of thyroid
  • Malignant tumor of thyroid gland
  • Medullary thyroid carcinoma
  • Metastasis from malignant tumor of thyroid
  • Mixed follicular and papillary thyroid carcinoma
  • Oxyphilic adenocarcinoma
  • Papillary thyroid carcinoma
  • Primary malignant neoplasm of thyroglossal duct
  • Primary malignant neoplasm of thyroid gland
  • Primary malignant neoplasm of thyroid gland, metastatic to bone

Index of Diseases and Injuries
References found for the code C73 in the Index of Diseases and Injuries:

    Table of Neoplasms

    The code C73 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

    Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

    The Tabular must be reviewed for the complete diagnosis code.

    Neoplasm, neoplastic Malignant
    CaInSitu Benign Uncertain
    »thyroglossal duct
    »thyroid (gland)

    Information for Patients

    Thyroid Cancer

    Your thyroid is a butterfly-shaped gland in your neck, just above your collarbone. It makes hormones that help the body work normally. There are several types of cancer of the thyroid gland. You are at greater risk if you

    • Are between ages 25 and 65
    • Are a woman
    • Are Asian
    • Have a family member who has had thyroid disease
    • Have had radiation treatments to your head or neck

    You should see a doctor if you have a lump or swelling in your neck. Doctors use a physical exam, thyroid tests, other blood and imaging tests, and a biopsy to diagnose thyroid cancer. Treatment depends on the type of cancer you have and how far the cancer has spread. Many patients receive a combination of treatments. They may include surgery, radioactive iodine, hormone treatment, radiation therapy, chemotherapy, or targeted therapy. Targeted therapy uses substances that attack cancer cells without harming normal cells.

    NIH: National Cancer Institute

    • Anaplastic thyroid cancer (Medical Encyclopedia)
    • Fine needle aspiration of the thyroid (Medical Encyclopedia)
    • Medullary carcinoma of thyroid (Medical Encyclopedia)
    • Thyroid cancer (Medical Encyclopedia)
    • Thyroid cancer - papillary carcinoma (Medical Encyclopedia)
    • Thyroid gland removal (Medical Encyclopedia)
    • Thyroid Tests - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
    • Thyroid ultrasound (Medical Encyclopedia)
    • Understanding Chemotherapy - NIH - Easy-to-Read (National Cancer Institute)
    • What to Know about Brachytherapy (A Type of Internal Radiation Therapy) - NIH - Easy-to-Read (National Cancer Institute)
    • What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)

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