NPI Atlas

E20 – Hypoparathyroidism

ICD-10-CM 2027 diagnosis code · Disorders of other endocrine glands

Non-billable header

ICD-10-CM code E20

Code: E20 (claims format: E20)
Description: Hypoparathyroidism
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: E20-E35 Disorders of other endocrine glands

Billable codes under E20

E20 is a header code and cannot be used on claims. Choose the most specific code:

E20.0 – Idiopathic hypoparathyroidismBillable
E20.1 – PseudohypoparathyroidismBillable
E20.8 – Other hypoparathyroidismHeader (more codes below)
E20.9 – Hypoparathyroidism, unspecifiedBillable

Notes for E20

Excludes1 (not coded here):

Di George's syndrome (D82.1)
postprocedural hypoparathyroidism (E89.2)
tetany NOS (R29.0)
transitory neonatal hypoparathyroidism (P71.4)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block E20-E35

Excludes1 (not coded here):

galactorrhea (N64.3)
gynecomastia (N62)

Frequently asked questions

What is ICD-10 code E20?

E20 is the ICD-10-CM code for hypoparathyroidism, in the block E20-E35 (Disorders of other endocrine glands).

Is E20 a billable code?

No. E20 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.