ICD-10-CM · Chapter 4 · E00-E89
E31 Polyglandular dysfunction
Excludes 1 (cannot be coded together)
- ataxia telangiectasia [Louis-Bar] (G11.3)
- dystrophia myotonica [Steinert] (G71.11)
- pseudohypoparathyroidism (E20.1)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| E31..0 | Autoimmune polyglandular failure | Yes |
| E31..1 | Polyglandular hyperfunction | Yes |
| E31..2 | Multiple endocrine neoplasia [MEN] syndromes | No |
| E31..20 | Multiple endocrine neoplasia [MEN] syndrome, unspecified | Yes |
| E31..21 | Multiple endocrine neoplasia [MEN] type I | Yes |
| E31..22 | Multiple endocrine neoplasia [MEN] type IIA | Yes |
| E31..23 | Multiple endocrine neoplasia [MEN] type IIB | Yes |
| E31..8 | Other polyglandular dysfunction | Yes |
| E31..9 | Polyglandular dysfunction, unspecified | Yes |
Last reviewed: September 2026