ICD-10 · PDGM grouping
I95-I99 — Other and unspecified disorders of the circulatory system
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
Codes in range
49
No clinical group
2
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
43 of the 49 codes in I95-I99 group to MMTA - Cardiac and Circulatory, but the range is not uniform — it spreads across 3 clinical groups. A further 2 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in I95-I99
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
Every code in I95-I99
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| I950 | Idiopathic hypotension | A | Can lead a claim |
| I951 | Orthostatic hypotension | A | Can lead a claim |
| I952 | Hypotension due to drugs | H | Can lead a claim |
| I953 | Hypotension of hemodialysis | H | Can lead a claim |
| I9581 | Postprocedural hypotension | H | Can lead a claim |
| I9589 | Other hypotension | H | Can lead a claim |
| I959 | Hypotension, unspecified | None | Cannot lead a claim |
| I96 | Gangrene, not elsewhere classified | C | Can lead a claim |
| I970 | Postcardiotomy syndrome | H | Can lead a claim |
| I97110 | Postproc cardiac insufficiency following cardiac surgery | H | Can lead a claim |
| I97111 | Postprocedural cardiac insufficiency following other surgery | H | Can lead a claim |
| I97120 | Postprocedural cardiac arrest following cardiac surgery | H | Can lead a claim |
| I97121 | Postprocedural cardiac arrest following other surgery | H | Can lead a claim |
| I97130 | Postprocedural heart failure following cardiac surgery | H | Can lead a claim |
| I97131 | Postprocedural heart failure following other surgery | H | Can lead a claim |
| I97190 | Oth postproc cardiac functn disturb fol cardiac surgery | H | Can lead a claim |
| I97191 | Oth postproc cardiac functn disturb following oth surgery | H | Can lead a claim |
| I972 | Postmastectomy lymphedema syndrome | C | Can lead a claim |
| I973 | Postprocedural hypertension | H | Can lead a claim |
| I97410 | Intraoperative hemor/hemtom of a circ sys org comp card cath | H | Can lead a claim |
| I97411 | Intraop hemor/hemtom of a circ sys org comp card bypass | H | Can lead a claim |
| I97418 | Intraop hemor/hemtom of circ sys org comp oth circ sys proc | H | Can lead a claim |
| I9742 | Intraop hemor/hemtom of a circ sys org comp oth procedure | H | Can lead a claim |
| I9751 | Acc pnctr & lac of a circ sys org during a circ sys proc | H | Can lead a claim |
| I9752 | Acc pnctr & lac of a circ sys org during oth procedure | H | Can lead a claim |
| I97610 | Postproc hemor of a circ sys org following a cardiac cath | H | Can lead a claim |
| I97611 | Postproc hemor of a circ sys org following cardiac bypass | H | Can lead a claim |
| I97618 | Postproc hemor of a circ sys org fol other circ sys proc | H | Can lead a claim |
| I97620 | Postproc hemor of a circ sys org following other procedure | H | Can lead a claim |
| I97621 | Postproc hematoma of a circ sys org fol other procedure | H | Can lead a claim |
| I97622 | Postproc seroma of a circ sys org following other procedure | H | Can lead a claim |
| I97630 | Postproc hematoma of a circ sys org following a cardiac cath | H | Can lead a claim |
| I97631 | Postproc hematoma of a circ sys org following cardiac bypass | H | Can lead a claim |
| I97638 | Postproc hematoma of a circ sys org fol other circ sys proc | H | Can lead a claim |
| I97640 | Postproc seroma of a circ sys org following a cardiac cath | H | Can lead a claim |
| I97641 | Postproc seroma of a circ sys org following cardiac bypass | H | Can lead a claim |
| I97648 | Postproc seroma of a circ sys org fol other circ sys proc | H | Can lead a claim |
| I97710 | Intraoperative cardiac arrest during cardiac surgery | H | Can lead a claim |
| I97711 | Intraoperative cardiac arrest during other surgery | H | Can lead a claim |
| I97790 | Oth intraop cardiac functn disturb during cardiac surgery | H | Can lead a claim |
| I97791 | Oth intraop cardiac functional disturb during oth surgery | H | Can lead a claim |
| I97810 | Intraoperative cerebvasc infarction during cardiac surgery | H | Can lead a claim |
| I97811 | Intraoperative cerebrovascular infarction during oth surgery | H | Can lead a claim |
| I97820 | Postproc cerebvasc infarction following cardiac surgery | H | Can lead a claim |
| I97821 | Postprocedural cerebvasc infarction following other surgery | H | Can lead a claim |
| I9788 | Oth intraoperative complications of the circ sys, NEC | H | Can lead a claim |
| I9789 | Oth postproc comp and disorders of the circ sys, NEC | H | Can lead a claim |
| I998 | Other disorder of circulatory system | H | Can lead a claim |
| I999 | Unspecified disorder of circulatory system | None | Cannot lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. 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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