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 v07.1.26.

OASIS-E2 v1.00.0 · ingested 2026-04-26

Codes in range

No clinical group

A period cannot be grouped from these.

Barred as primary

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.

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	Accepted
E201	Pseudohypoparathyroidism	I	Accepted
E20810	Autosomal dominant hypocalcemia	I	Accepted
E20811	Secondary hypoparathyroidism in diseases classd elswhr	None	Cannot group
E20812	Autoimmune hypoparathyroidism	I	Accepted
E20818	Oth hypoparathyroidism due to impaired PTH secretion	I	Accepted
E20819	Hypoparathyroidism due to impaired PTH secretion, unsp	I	Accepted
E2089	Other specified hypoparathyroidism	I	Accepted
E209	Hypoparathyroidism, unspecified	I	Accepted
E210	Primary hyperparathyroidism	I	Accepted
E211	Secondary hyperparathyroidism, not elsewhere classified	I	Accepted
E212	Other hyperparathyroidism	I	Accepted
E213	Hyperparathyroidism, unspecified	I	Accepted
E214	Other specified disorders of parathyroid gland	I	Accepted
E215	Disorder of parathyroid gland, unspecified	None	Cannot group
E220	Acromegaly and pituitary gigantism	I	Accepted
E221	Hyperprolactinemia	I	Accepted
E222	Syndrome of inappropriate secretion of antidiuretic hormone	I	Accepted
E228	Other hyperfunction of pituitary gland	I	Accepted
E229	Hyperfunction of pituitary gland, unspecified	None	Cannot group
E230	Hypopituitarism	I	Accepted
E231	Drug-induced hypopituitarism	I	Accepted
E232	Diabetes insipidus	None	Cannot group
E233	Hypothalamic dysfunction, not elsewhere classified	I	Accepted
E236	Other disorders of pituitary gland	I	Accepted
E237	Disorder of pituitary gland, unspecified	None	Cannot group
E240	Pituitary-dependent Cushing's disease	I	Accepted
E241	Nelson's syndrome	I	Accepted
E242	Drug-induced Cushing's syndrome	I	Accepted
E243	Ectopic ACTH syndrome	I	Accepted
E244	Alcohol-induced pseudo-Cushing's syndrome	I	Accepted
E248	Other Cushing's syndrome	I	Accepted
E249	Cushing's syndrome, unspecified	I	Accepted
E250	Congenital adrenogenital disorders assoc w enzyme deficiency	I	Accepted
E258	Other adrenogenital disorders	I	Accepted
E259	Adrenogenital disorder, unspecified	None	Cannot group
E2601	Conn's syndrome	I	Accepted
E2602	Glucocorticoid-remediable aldosteronism	I	Accepted
E2609	Other primary hyperaldosteronism	I	Accepted
E261	Secondary hyperaldosteronism	I	Accepted
E2681	Bartter's syndrome	I	Accepted
E2689	Other hyperaldosteronism	I	Accepted
E269	Hyperaldosteronism, unspecified	None	Cannot group
E270	Other adrenocortical overactivity	I	Accepted
E271	Primary adrenocortical insufficiency	I	Accepted
E272	Addisonian crisis	I	Accepted
E273	Drug-induced adrenocortical insufficiency	I	Accepted
E2740	Unspecified adrenocortical insufficiency	None	Cannot group
E2749	Other adrenocortical insufficiency	None	Cannot group
E275	Adrenomedullary hyperfunction	I	Accepted
E278	Other specified disorders of adrenal gland	I	Accepted
E279	Disorder of adrenal gland, unspecified	None	Cannot group
E280	Estrogen excess	A	Accepted
E281	Androgen excess	A	Accepted
E282	Polycystic ovarian syndrome	I	Accepted
E28310	Symptomatic premature menopause	A	Accepted
E28319	Asymptomatic premature menopause	A	Accepted
E2839	Other primary ovarian failure	A	Accepted
E288	Other ovarian dysfunction	I	Accepted
E289	Ovarian dysfunction, unspecified	None	Cannot group
E290	Testicular hyperfunction	A	Accepted
E291	Testicular hypofunction	I	Accepted
E298	Other testicular dysfunction	I	Accepted
E299	Testicular dysfunction, unspecified	None	Cannot group
E300	Delayed puberty	None	Cannot group
E301	Precocious puberty	None	Cannot group
E308	Other disorders of puberty	None	Cannot group
E309	Disorder of puberty, unspecified	None	Cannot group
E310	Autoimmune polyglandular failure	I	Accepted
E311	Polyglandular hyperfunction	A	Accepted
E3120	Multiple endocrine neoplasia [MEN] syndrome, unspecified	I	Accepted
E3121	Multiple endocrine neoplasia [MEN] type I	I	Accepted
E3122	Multiple endocrine neoplasia [MEN] type IIA	I	Accepted
E3123	Multiple endocrine neoplasia [MEN] type IIB	A	Accepted
E318	Other polyglandular dysfunction	A	Accepted
E319	Polyglandular dysfunction, unspecified	I	Accepted
E320	Persistent hyperplasia of thymus	None	Cannot group
E321	Abscess of thymus	A	Accepted
E328	Other diseases of thymus	I	Accepted
E329	Disease of thymus, unspecified	None	Cannot group
E3400	Carcinoid syndrome, unspecified	I	Accepted
E3401	Carcinoid heart syndrome	I	Accepted
E3409	Other carcinoid syndrome	I	Accepted
E341	Other hypersecretion of intestinal hormones	A	Accepted
E342	Ectopic hormone secretion, not elsewhere classified	A	Accepted
E3430	Short stature due to endocrine disorder, unspecified	I	Accepted
E3431	Constitutional short stature	I	Accepted
E34321	Primary insulin-like growth factor-1 (IGF-1) deficiency	I	Accepted
E34322	Insulin-like growth factor-1 (IGF-1) resistance	I	Accepted
E34328	Other genetic causes of short stature	I	Accepted
E34329	Unspecified genetic causes of short stature	I	Accepted
E3439	Other short stature due to endocrine disorder	I	Accepted
E344	Constitutional tall stature	A	Accepted
E3450	Androgen insensitivity syndrome, unspecified	None	Cannot group
E3451	Complete androgen insensitivity syndrome	I	Accepted
E3452	Partial androgen insensitivity syndrome	A	Accepted
E348	Other specified endocrine disorders	I	Accepted
E349	Endocrine disorder, unspecified	None	Cannot group
E35	Disorders of endocrine glands in diseases classd elswhr	None	Cannot group

Source: CMS HH PPS Grouper Software v07.1.26, effective 2026-04-01. 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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E20-E35 — Disorders of other endocrine glands

Where these codes group

Every code in E20-E35

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