5A04

ICD-11 MMS 2026-01

Hypersecretion of calcitonin

Description

This is the process of elaborating, releasing, and oozing a 32-amino acid linear polypeptide hormone that is produced in humans primarily by the parafollicular cells (also known as C-cells) of the thyroid, and in many other animals in the ultimobranchial body.

Index terms

  • Hypersecretion of calcitonin
  • C-cell hyperplasia of thyroid
  • Hypersecretion of thyrocalcitonin

Inclusions

  • C-cell hyperplasia of thyroid
  • Hypersecretion of thyrocalcitonin

Exclusions from above levels

  • 18 – Pregnancy, childbirth or the puerperium
  • http://id.who.int/icd/entity/1004987305 – Transitory endocrine or metabolic disorders specific to fetus or newborn

Sibling codes

  • 5A00 – Hypothyroidism
  • 5A01 – Nontoxic goitre
  • 5A02 – Thyrotoxicosis
  • 5A03 – Thyroiditis
  • 5A05 – Generalised resistance to thyroid hormone
  • 5A06 – Sick-euthyroid syndrome
  • 5A0Y – Other specified disorders of the thyroid gland or thyroid hormones system
  • 5A0Z – Disorders of the thyroid gland or thyroid hormones system, unspecified

Foundation entity

Hypersecretion of calcitonin – http://id.who.int/icd/entity/922786718

Part of: 05: Endocrine, nutritional or metabolic diseases