ICD-10 · PDGM grouping
T79-T79 — Certain early complications of trauma
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
54
No clinical group
12
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
42 of the 54 codes in T79-T79 group to MMTA - Other. A further 12 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Every code in T79-T79
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| T790XXA | Air embolism (traumatic), initial encounter | A | Accepted |
| T790XXD | Air embolism (traumatic), subsequent encounter | A | Accepted |
| T790XXS | Air embolism (traumatic), sequela | A | Accepted |
| T791XXA | Fat embolism (traumatic), initial encounter | A | Accepted |
| T791XXD | Fat embolism (traumatic), subsequent encounter | A | Accepted |
| T791XXS | Fat embolism (traumatic), sequela | A | Accepted |
| T792XXA | Traumatic secondary and recurrent hemor and seroma, init | A | Accepted |
| T792XXD | Traumatic secondary and recurrent hemor and seroma, subs | A | Accepted |
| T792XXS | Traumatic secondary and recurrent hemor and seroma, sequela | A | Accepted |
| T794XXA | Traumatic shock, initial encounter | A | Accepted |
| T794XXD | Traumatic shock, subsequent encounter | A | Accepted |
| T794XXS | Traumatic shock, sequela | A | Accepted |
| T795XXA | Traumatic anuria, initial encounter | A | Accepted |
| T795XXD | Traumatic anuria, subsequent encounter | A | Accepted |
| T795XXS | Traumatic anuria, sequela | A | Accepted |
| T796XXA | Traumatic ischemia of muscle, initial encounter | A | Accepted |
| T796XXD | Traumatic ischemia of muscle, subsequent encounter | A | Accepted |
| T796XXS | Traumatic ischemia of muscle, sequela | A | Accepted |
| T797XXA | Traumatic subcutaneous emphysema, initial encounter | A | Accepted |
| T797XXD | Traumatic subcutaneous emphysema, subsequent encounter | A | Accepted |
| T797XXS | Traumatic subcutaneous emphysema, sequela | A | Accepted |
| T798XXA | Other early complications of trauma, initial encounter | A | Accepted |
| T798XXD | Other early complications of trauma, subsequent encounter | A | Accepted |
| T798XXS | Other early complications of trauma, sequela | A | Accepted |
| T799XXA | Unspecified early complication of trauma, initial encounter | None | Cannot group |
| T799XXD | Unspecified early complication of trauma, subs encntr | None | Cannot group |
| T799XXS | Unspecified early complication of trauma, sequela | None | Cannot group |
| T79A0XA | Compartment syndrome, unspecified, initial encounter | None | Cannot group |
| T79A0XD | Compartment syndrome, unspecified, subsequent encounter | None | Cannot group |
| T79A0XS | Compartment syndrome, unspecified, sequela | None | Cannot group |
| T79A11A | Traumatic compartment syndrome of r up extrem, init | A | Accepted |
| T79A11D | Traumatic compartment syndrome of r up extrem, subs | A | Accepted |
| T79A11S | Traumatic compartment syndrome of r up extrem, sequela | A | Accepted |
| T79A12A | Traumatic compartment syndrome of left upper extremity, init | A | Accepted |
| T79A12D | Traumatic compartment syndrome of left upper extremity, subs | A | Accepted |
| T79A12S | Traumatic compartment syndrome of l up extrem, sequela | A | Accepted |
| T79A19A | Traumatic compartment syndrome of unsp upper extremity, init | None | Too unspecified |
| T79A19D | Traumatic compartment syndrome of unsp upper extremity, subs | None | Cannot group |
| T79A19S | Traumatic compartment syndrome of unsp up extrem, sequela | None | Cannot group |
| T79A21A | Traumatic compartment syndrome of r low extrem, init | A | Accepted |
| T79A21D | Traumatic compartment syndrome of r low extrem, subs | A | Accepted |
| T79A21S | Traumatic compartment syndrome of r low extrem, sequela | A | Accepted |
| T79A22A | Traumatic compartment syndrome of left lower extremity, init | A | Accepted |
| T79A22D | Traumatic compartment syndrome of left lower extremity, subs | A | Accepted |
| T79A22S | Traumatic compartment syndrome of l low extrem, sequela | A | Accepted |
| T79A29A | Traumatic compartment syndrome of unsp lower extremity, init | None | Too unspecified |
| T79A29D | Traumatic compartment syndrome of unsp lower extremity, subs | None | Cannot group |
| T79A29S | Traumatic compartment syndrome of unsp low extrm, sequela | None | Cannot group |
| T79A3XA | Traumatic compartment syndrome of abdomen, initial encounter | A | Accepted |
| T79A3XD | Traumatic compartment syndrome of abdomen, subs encntr | A | Accepted |
| T79A3XS | Traumatic compartment syndrome of abdomen, sequela | A | Accepted |
| T79A9XA | Traumatic compartment syndrome of other sites, init encntr | A | Accepted |
| T79A9XD | Traumatic compartment syndrome of other sites, subs encntr | A | Accepted |
| T79A9XS | Traumatic compartment syndrome of other sites, sequela | A | Accepted |
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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