October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

Y83 Surgical operation and other surgical 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 9 codes in the Y83 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.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

9

Can lead a claim

0

Cannot lead a claim

9

What CMS assigns to Y83

None of the 9 codes is assigned a clinical group. None of the 9 is assigned a comorbidity subgroup. None can lead a claim.

Every code in Y83

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
Y83.0Surgical operation with transplant of whole organ as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Txplt of whole organ cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.1Surgical operation with implant of artificial internal device as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Implnt of artif int dev cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.2Surgical operation with anastomosis, bypass or graft as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Anastomos,bypass or grft cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.3Surgical operation with formation of external stoma as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Form of external stoma cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.4Other reconstructive surgery as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Oth recnst surgery cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.5Amputation of limb(s) as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Amputation of limb(s) cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.6Removal of other organ (partial) (total) as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedureCMS: Remov org (total) cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.8Other surgical 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 surgical procedures cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y83.9Surgical 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: Surgical proc, unsp cause abn react/compl, w/o misadvntCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone

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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