U00-U49 — Provisional assignment of new diseases of uncertain etiology or emergency use
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.
Codes in range
3
No clinical group
1
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
2 of the 3 codes in U00-U49 group to MMTA - Respiratory. A further 1 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Every code in U00-U49
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| U070 | Vaping-related disorder | L | Accepted |
| U071 | COVID-19 | L | Accepted |
| U099 | Post COVID-19 condition, unspecified | 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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