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E20.810

Autosomal dominant hypocalcemia

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 7 never code together
E20code
Excludes1
  • Di George's syndrome (D82.1)D82.1
  • postprocedural hypoparathyroidism (E89.2)E89.2
  • tetany NOS (R29.0)R29.0
  • transitory neonatal hypoparathyroidism (P71.4)P71.4
E20-E35block
Excludes1
  • galactorrhea (N64.3)N64.3
  • gynecomastia (N62)N62
E00-E89chapter
Excludes1
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)P70-P74

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes 8
E20.810code
Inclusion terms
  • Autosomal dominant hypocalcemia type 1 (ADH1)
  • Autosomal dominant hypocalcemia type 2 (ADH2)
Code also
  • , if applicable, any associated conditions, such as:
  • calculus of kidney (N20.0)N20.0
  • chronic kidney disease (N18.-)N18.-
  • respiratory distress (J80, R06.-)J80R06.-
  • seizure disorder (G40.-, R56.9)G40.-R56.9
E00-E89chapter
Notes
  • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.E05.8E07.0E16-E31E34.-
Index entries leading here 1
Alongside this code 4 same parent — E20.81
E20.811 Secondary hypoparathyroidism in diseases classd elswhr E20.812 Autoimmune hypoparathyroidism E20.818 Oth hypoparathyroidism due to impaired PTH secretion E20.819 Hypoparathyroidism due to impaired PTH secretion, unsp
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS22HCC23 ESRD21HCC23 ESRD24HCC23 RX08HCC43

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This code

Billable
yes
Code set
FY2026
Parent
E20.81
Block
E20-E35
Siblings
4

Present FY2024–FY2027.