ICD-10-CM 2027
ICD-10 code for thyrocalcitonin hypersecretion
From the official ICD-10-CM alphabetic index entry “Hypersecretion › thyrocalcitonin”. Page updated September 29, 2026.
About coding thyrocalcitonin hypersecretion
The ICD-10-CM code for thyrocalcitonin hypersecretion is E07.0 (Hypersecretion of calcitonin).
Within E07 (other disorders of thyroid), E07.0 is specifically for hypersecretion of calcitonin. Related codes cover Dyshormogenetic goiter (E07.1), other specified disorders of thyroid (E07.8) and disorder of thyroid, unspecified (E07.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 643 (Endocrine Disorders with MCC, relative weight 1.6139), DRG 644 (Endocrine Disorders with CC, relative weight 1.0044) and DRG 645 (Endocrine Disorders without CC/MCC, relative weight 0.7459), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about thyrocalcitonin hypersecretion ICD-10 codes
What is the ICD-10 code for thyrocalcitonin hypersecretion?
- E07.0 — Hypersecretion of calcitonin.
Is E07.0 billable?
- Yes. E07.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E07.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E07.0 as a principal diagnosis.
Is E07.0 a CC or MCC?
- No. E07.0 is neither a CC nor an MCC under MS-DRG v44.0.