ICD-10 · PDGM grouping
Y84 Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
All 10 codes in the Y84 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
10
Can lead a claim
0
Cannot lead a claim
10
What CMS assigns to Y84
None of the 10 codes is assigned a clinical group. None of the 10 is assigned a comorbidity subgroup. None can lead a claim.
Every code in Y84
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| Y84.0 | Cardiac catheterization as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Cardiac catheterization cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.1 | Kidney dialysis as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Kidney dialysis cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.2 | Radiological procedure and radiotherapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Radiolog proc/radiothrpy cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.3 | Shock therapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Shock therapy cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.4 | Aspiration of fluid as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Aspiration of fluid cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.5 | Insertion of gastric or duodenal sound as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Insrt gastr/duodnl sound cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.6 | Urinary catheterization as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Urinary catheterization cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.7 | Blood-sampling as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Blood-sampling cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.8 | Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Oth medical procedures cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y84.9 | Medical procedure, unspecified as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Medical procedure, unsp cause abn react/compl, w/o misadvnt | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. 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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