PDGM · Clinical group

I — MMTA - Endocrine

One of the twelve PDGM clinical groups. CMS maps 424 ICD-10-CM codes to it in grouper v07.1.26.

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

What lands a period in this group

The clinical group is set by the diagnosis reported in the primary position, and it is one of the five things that decide a 30-day period’s payment group — alongside admission source, timing, functional impairment level and comorbidity adjustment. CMS maps 424 ICD-10-CM codes to MMTA - Endocrine, spread across 8 ICD-10-CM ranges.

Those ranges are not always the ones you would expect from the chapter. Cerebrovascular disease sits in the circulatory chapter alongside heart failure, but CMS groups strokes as neurological rehabilitation — which is why the chapter a code lives in is a poor guide to how it pays.

Functional impairment thresholds for MMTA - Endocrine

The same OASIS point total means different things in different groups. In this group a patient scoring 27 or fewer points is low functional impairment, 28 to 41 is medium, and 42 or more is high. CMS sets the bands so roughly a third of periods in each group land in each level, which is why the same documentation can produce a different level in a different group.

ICD-10-CM ranges that feed this group

Range	Description	Codes in this group
E08-E13	Diabetes mellitus	280
E20-E35	Disorders of other endocrine glands	64
E00-E07	Disorders of thyroid gland	46
E70-E88	Metabolic disorders	15
E15-E16	Other disorders of glucose regulation and pancreatic internal secretion	9
E89-E89	Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified	6
E40-E46	Malnutrition	3
E36-E36	Intraoperative complications of endocrine system	1

Source: CMS HH PPS Grouper Software v07.1.26. Counts are read from the CMS table, not transcribed.

The other eleven groups

What CMS changed, what's due next, and what to do about it — one email a month, no fluff.