AutoICD API

E21

Non-billable

Hyperparathyroidism and other disorders of parathyroid gland

Hyperparathyroidism and other disorders of parathyroid gland

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

E20-E35

Child Codes

6

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
  • galactorrhea (N64.3)
  • gynecomastia (N62)
  • adult osteomalacia (M83.-)
  • ectopic hyperparathyroidism (E34.2)
  • hungry bone syndrome (E83.81)
  • infantile and juvenile osteomalacia (E55.0)

Excludes 2

Conditions not included here, but the patient may have both

  • familial hypocalciuric hypercalcemia (E83.52)

Child Codes (6)

E21.0

Primary hyperparathyroidism

BillableE21.1

Secondary hyperparathyroidism, not elsewhere classified

BillableE21.2

Other hyperparathyroidism

BillableE21.3

Hyperparathyroidism, unspecified

BillableE21.4

Other specified disorders of parathyroid gland

BillableE21.5

Disorder of parathyroid gland, unspecified

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code E21?

ICD-10-CM code E21 represents "Hyperparathyroidism and other disorders of parathyroid gland". It is a non-billable header code — use a more specific child code for billing purposes.

Is E21 a billable code?

No, E21 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under E21.

What chapter is E21 in?

E21 is in Chapter 4: Endocrine, Nutritional and Metabolic Diseases (codes E00-E89).

What codes cannot be used with E21?

E21 has Excludes1 notes indicating codes that cannot be used together with it, including: transitory endocrine and metabolic disorders specific to newborn (P70-P74); galactorrhea (N64.3); gynecomastia (N62); and 4 more.

What are the subcategories under E21?

E21 has 6 child codes, including: E21.0 (Primary hyperparathyroidism), E21.1 (Secondary hyperparathyroidism, not elsewhere classified), E21.2 (Other hyperparathyroidism), E21.3 (Hyperparathyroidism, unspecified), and 2 more.

What are the UMLS CUIs for E21?

E21 is linked to 1 UMLS Concept Unique Identifier: C0494304. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.