ICD-10 · PDGM grouping
E20-E35 — Disorders of other endocrine glands
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in range
99
No clinical group
21
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
64 of the 99 codes in E20-E35 group to MMTA - Endocrine, but the range is not uniform — it spreads across 2 clinical groups. A further 21 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in E20-E35
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
- E20Hypoparathyroidism9 codes
- E21Hyperparathyroidism and other disorders of parathyroid gland6 codes
- E22Hyperfunction of pituitary gland5 codes
- E23Hypofunction and other disorders of the pituitary gland6 codes
- E24Cushing's syndrome7 codes
- E25Adrenogenital disorders3 codes
- E26Hyperaldosteronism7 codes
- E27Other disorders of adrenal gland9 codes
- E28Ovarian dysfunction8 codes
- E29Testicular dysfunction4 codes
- E30Disorders of puberty, not elsewhere classified4 codes
- E31Polyglandular dysfunction8 codes
- E32Diseases of thymus4 codes
- E34Other endocrine disorders18 codes
- E35Disorders of endocrine glands in diseases classified elsewhere1 code
Every code in E20-E35
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| E200 | Idiopathic hypoparathyroidism | I | Can lead a claim |
| E201 | Pseudohypoparathyroidism | I | Can lead a claim |
| E20810 | Autosomal dominant hypocalcemia | I | Can lead a claim |
| E20811 | Secondary hypoparathyroidism in diseases classd elswhr | None | Cannot lead a claim |
| E20812 | Autoimmune hypoparathyroidism | I | Can lead a claim, code first applies |
| E20818 | Oth hypoparathyroidism due to impaired PTH secretion | I | Can lead a claim |
| E20819 | Hypoparathyroidism due to impaired PTH secretion, unsp | I | Can lead a claim |
| E2089 | Other specified hypoparathyroidism | I | Can lead a claim |
| E209 | Hypoparathyroidism, unspecified | I | Can lead a claim |
| E210 | Primary hyperparathyroidism | I | Can lead a claim |
| E211 | Secondary hyperparathyroidism, not elsewhere classified | I | Can lead a claim |
| E212 | Other hyperparathyroidism | I | Can lead a claim |
| E213 | Hyperparathyroidism, unspecified | I | Can lead a claim |
| E214 | Other specified disorders of parathyroid gland | I | Can lead a claim |
| E215 | Disorder of parathyroid gland, unspecified | None | Cannot lead a claim |
| E220 | Acromegaly and pituitary gigantism | I | Can lead a claim |
| E221 | Hyperprolactinemia | I | Can lead a claim |
| E222 | Syndrome of inappropriate secretion of antidiuretic hormone | I | Can lead a claim |
| E228 | Other hyperfunction of pituitary gland | I | Can lead a claim |
| E229 | Hyperfunction of pituitary gland, unspecified | None | Cannot lead a claim |
| E230 | Hypopituitarism | I | Can lead a claim |
| E231 | Drug-induced hypopituitarism | I | Can lead a claim |
| E232 | Diabetes insipidus | None | Cannot lead a claim |
| E233 | Hypothalamic dysfunction, not elsewhere classified | I | Can lead a claim |
| E236 | Other disorders of pituitary gland | I | Can lead a claim |
| E237 | Disorder of pituitary gland, unspecified | None | Cannot lead a claim |
| E240 | Pituitary-dependent Cushing's disease | I | Can lead a claim |
| E241 | Nelson's syndrome | I | Can lead a claim |
| E242 | Drug-induced Cushing's syndrome | I | Can lead a claim |
| E243 | Ectopic ACTH syndrome | I | Can lead a claim |
| E244 | Alcohol-induced pseudo-Cushing's syndrome | I | Can lead a claim |
| E248 | Other Cushing's syndrome | I | Can lead a claim |
| E249 | Cushing's syndrome, unspecified | I | Can lead a claim |
| E250 | Congenital adrenogenital disorders assoc w enzyme deficiency | I | Can lead a claim |
| E258 | Other adrenogenital disorders | I | Can lead a claim |
| E259 | Adrenogenital disorder, unspecified | None | Cannot lead a claim |
| E2601 | Conn's syndrome | I | Can lead a claim |
| E2602 | Glucocorticoid-remediable aldosteronism | I | Can lead a claim |
| E2609 | Other primary hyperaldosteronism | I | Can lead a claim |
| E261 | Secondary hyperaldosteronism | I | Can lead a claim |
| E2681 | Bartter's syndrome | I | Can lead a claim |
| E2689 | Other hyperaldosteronism | I | Can lead a claim |
| E269 | Hyperaldosteronism, unspecified | None | Cannot lead a claim |
| E270 | Other adrenocortical overactivity | I | Can lead a claim |
| E271 | Primary adrenocortical insufficiency | I | Can lead a claim |
| E272 | Addisonian crisis | I | Can lead a claim |
| E273 | Drug-induced adrenocortical insufficiency | I | Can lead a claim |
| E2740 | Unspecified adrenocortical insufficiency | None | Cannot lead a claim |
| E2749 | Other adrenocortical insufficiency | None | Cannot lead a claim |
| E275 | Adrenomedullary hyperfunction | I | Can lead a claim |
| E278 | Other specified disorders of adrenal gland | I | Can lead a claim |
| E279 | Disorder of adrenal gland, unspecified | None | Cannot lead a claim |
| E280 | Estrogen excess | A | Can lead a claim |
| E281 | Androgen excess | A | Can lead a claim |
| E282 | Polycystic ovarian syndrome | I | Can lead a claim |
| E28310 | Symptomatic premature menopause | A | Can lead a claim |
| E28319 | Asymptomatic premature menopause | A | Can lead a claim |
| E2839 | Other primary ovarian failure | A | Can lead a claim |
| E288 | Other ovarian dysfunction | I | Can lead a claim |
| E289 | Ovarian dysfunction, unspecified | None | Cannot lead a claim |
| E290 | Testicular hyperfunction | A | Can lead a claim |
| E291 | Testicular hypofunction | I | Can lead a claim |
| E298 | Other testicular dysfunction | I | Can lead a claim |
| E299 | Testicular dysfunction, unspecified | None | Cannot lead a claim |
| E300 | Delayed puberty | None | Cannot lead a claim |
| E301 | Precocious puberty | None | Cannot lead a claim |
| E308 | Other disorders of puberty | None | Cannot lead a claim |
| E309 | Disorder of puberty, unspecified | None | Cannot lead a claim |
| E310 | Autoimmune polyglandular failure | I | Can lead a claim |
| E311 | Polyglandular hyperfunction | A | Can lead a claim |
| E3120 | Multiple endocrine neoplasia [MEN] syndrome, unspecified | I | Can lead a claim |
| E3121 | Multiple endocrine neoplasia [MEN] type I | I | Can lead a claim |
| E3122 | Multiple endocrine neoplasia [MEN] type IIA | I | Can lead a claim |
| E3123 | Multiple endocrine neoplasia [MEN] type IIB | A | Can lead a claim |
| E318 | Other polyglandular dysfunction | A | Can lead a claim |
| E319 | Polyglandular dysfunction, unspecified | I | Can lead a claim |
| E320 | Persistent hyperplasia of thymus | None | Cannot lead a claim |
| E321 | Abscess of thymus | A | Can lead a claim |
| E328 | Other diseases of thymus | I | Can lead a claim |
| E329 | Disease of thymus, unspecified | None | Cannot lead a claim |
| E3400 | Carcinoid syndrome, unspecified | I | Can lead a claim |
| E3401 | Carcinoid heart syndrome | I | Can lead a claim |
| E3409 | Other carcinoid syndrome | I | Can lead a claim |
| E341 | Other hypersecretion of intestinal hormones | A | Can lead a claim |
| E342 | Ectopic hormone secretion, not elsewhere classified | A | Can lead a claim |
| E3430 | Short stature due to endocrine disorder, unspecified | I | Can lead a claim |
| E3431 | Constitutional short stature | I | Can lead a claim |
| E34321 | Primary insulin-like growth factor-1 (IGF-1) deficiency | I | Can lead a claim |
| E34322 | Insulin-like growth factor-1 (IGF-1) resistance | I | Can lead a claim |
| E34328 | Other genetic causes of short stature | I | Can lead a claim |
| E34329 | Unspecified genetic causes of short stature | I | Can lead a claim |
| E3439 | Other short stature due to endocrine disorder | I | Can lead a claim |
| E344 | Constitutional tall stature | A | Can lead a claim |
| E3450 | Androgen insensitivity syndrome, unspecified | None | Cannot lead a claim |
| E3451 | Complete androgen insensitivity syndrome | I | Can lead a claim |
| E3452 | Partial androgen insensitivity syndrome | A | Can lead a claim |
| E348 | Other specified endocrine disorders | I | Can lead a claim |
| E349 | Endocrine disorder, unspecified | None | Cannot lead a claim |
| E35 | Disorders of endocrine glands in diseases classd elswhr | None | Cannot lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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