G · MMTA - Surgical Aftercare
One of the twelve PDGM clinical groups. CMS maps 21 ICD-10-CM codes to it in grouper v07.2.26.
Group G
ICD-10-CM codes
21
Across 2 ICD-10-CM ranges, in grouper v07.2.26.
Functional bands
≤30 · 31–42 · 43+
OASIS points for low, medium and high functional impairment in this group.
LUPA thresholds
2 to 4 visits
Across the group’s 36 case-mix codes. Fewer visits than the threshold pays per visit.
Every HIPPS code in group G, with its LUPA threshold
1 · Community, Early
2 · Institutional, Early
3 · Community, Late
ICD-10-CM ranges that feed this group
What lands a period in this group
The clinical group is set by the principal diagnosis on the claim, and it is one of the five things that decide a 30-day period’s case-mix group, alongside admission source, timing, functional impairment level and comorbidity adjustment. CMS maps 21 ICD-10-CM codes to MMTA - Surgical Aftercare, spread across 2 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.
The other eleven groups
- AMMTA - Other
- BNeuro Rehabilitation
- CWound
- DComplex Nursing Interventions
- EMusculoskeletal Rehabilitation
- FBehavioral Health
- HMMTA - Cardiac and Circulatory
- IMMTA - Endocrine
- JMMTA - Gastrointestinal tract and Genitourinary system
- KMMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases
- LMMTA - Respiratory
Source: CMS HH PPS Grouper Software v07.2.26 for the codes and bands, read from the CMS table, not transcribed; CMS’s CY2026 case-mix weights and LUPA thresholds file for the thresholds. Not certified, endorsed or approved by CMS.
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