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

I87 Other disorders of veins

All 44 codes in the I87 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

44

Can lead a claim

33

Cannot lead a claim

11

What CMS assigns to I87

33 of the 44 codes group to Wound (13), MMTA - Cardiac and Circulatory (13) and MMTA - Other (7); 11 are assigned no clinical group. None of the 44 is assigned a comorbidity subgroup. 33 of the 44 can lead a claim.

Every code in I87

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
I87.0 Postthrombotic syndrome
I87.00 Postthrombotic syndrome without complications
I87.001Postthrombotic syndrome without complications of right lower extremityCMS: Postthrombotic syndrome w/o complications of r low extremCan lead a claimANone
I87.002Postthrombotic syndrome without complications of left lower extremityCMS: Postthrombotic syndrome w/o complications of l low extremCan lead a claimANone
I87.003Postthrombotic syndrome without complications of bilateral lower extremityCMS: Postthrom syndrome w/o complications of bilateral low extrmCan lead a claimANone
I87.009Postthrombotic syndrome without complications of unspecified extremityCMS: Postthrombotic syndrome w/o complications of unsp extremityCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
I87.01 Postthrombotic syndrome with ulcer
I87.011Postthrombotic syndrome with ulcer of right lower extremityCan lead a claimCNone
I87.012Postthrombotic syndrome with ulcer of left lower extremityCan lead a claimCNone
I87.013Postthrombotic syndrome with ulcer of bilateral lower extremityCMS: Postthrombotic syndrome w ulcer of bilateral lower extremityCan lead a claimCNone
I87.019Postthrombotic syndrome with ulcer of unspecified lower extremityCMS: Postthrombotic syndrome with ulcer of unsp lower extremityCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
I87.02 Postthrombotic syndrome with inflammation
I87.021Postthrombotic syndrome with inflammation of right lower extremityCMS: Postthrombotic syndrome w inflammation of r low extremCan lead a claimHNone
I87.022Postthrombotic syndrome with inflammation of left lower extremityCMS: Postthrombotic syndrome w inflammation of l low extremCan lead a claimHNone
I87.023Postthrombotic syndrome with inflammation of bilateral lower extremityCMS: Postthrom syndrome w inflammation of bilateral low extrmCan lead a claimHNone
I87.029Postthrombotic syndrome with inflammation of unspecified lower extremityCMS: Postthrombotic syndrome w inflammation of unsp low extrmCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
I87.03 Postthrombotic syndrome with ulcer and inflammation
I87.031Postthrombotic syndrome with ulcer and inflammation of right lower extremityCMS: Postthrom syndrome w ulcer and inflammation of r low extremCan lead a claimCNone
I87.032Postthrombotic syndrome with ulcer and inflammation of left lower extremityCMS: Postthrom syndrome w ulcer and inflammation of l low extremCan lead a claimCNone
I87.033Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremityCMS: Postthrom syndrome w ulcer and inflam of bilateral low extrmCan lead a claimCNone
I87.039Postthrombotic syndrome with ulcer and inflammation of unspecified lower extremityCMS: Postthrom syndrome w ulcer and inflam of unsp low extrmCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
I87.09 Postthrombotic syndrome with other complications
I87.091Postthrombotic syndrome with other complications of right lower extremityCMS: Postthrombotic syndrome w oth complications of r low extremCan lead a claimHNone
I87.092Postthrombotic syndrome with other complications of left lower extremityCMS: Postthrombotic syndrome w oth complications of l low extremCan lead a claimHNone
I87.093Postthrombotic syndrome with other complications of bilateral lower extremityCMS: Postthrom syndrome w oth comp of bilateral low extrmCan lead a claimHNone
I87.099Postthrombotic syndrome with other complications of unspecified lower extremityCMS: Postthrom syndrome w oth complications of unsp low extrmCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
I87.1Compression of veinCan lead a claimANone
I87.2Venous insufficiency (chronic) (peripheral)Can lead a claimCNone
I87.3 Chronic venous hypertension (idiopathic)
I87.30 Chronic venous hypertension (idiopathic) without complications
I87.301Chronic venous hypertension (idiopathic) without complications of right lower extremityCMS: Chronic venous hypertension w/o comp of r low extremCan lead a claimANone
I87.302Chronic venous hypertension (idiopathic) without complications of left lower extremityCMS: Chronic venous hypertension w/o comp of l low extremCan lead a claimANone
I87.303Chronic venous hypertension (idiopathic) without complications of bilateral lower extremityCMS: Chronic venous hypertension w/o comp of bilateral low extrmCan lead a claimANone
I87.309Chronic venous hypertension (idiopathic) without complications of unspecified lower extremityCMS: Chronic venous hypertension w/o comp of unsp low extrmCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
I87.31 Chronic venous hypertension (idiopathic) with ulcer
I87.311Chronic venous hypertension (idiopathic) with ulcer of right lower extremityCMS: Chronic venous hypertension w ulcer of r low extremCan lead a claimCNone
I87.312Chronic venous hypertension (idiopathic) with ulcer of left lower extremityCMS: Chronic venous hypertension w ulcer of l low extremCan lead a claimCNone
I87.313Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremityCMS: Chronic venous hypertension w ulcer of bilateral low extrmCan lead a claimCNone
I87.319Chronic venous hypertension (idiopathic) with ulcer of unspecified lower extremityCMS: Chronic venous hypertension w ulcer of unsp low extrmCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
I87.32 Chronic venous hypertension (idiopathic) with inflammation
I87.321Chronic venous hypertension (idiopathic) with inflammation of right lower extremityCMS: Chronic venous hypertension w inflammation of r low extremCan lead a claimHNone
I87.322Chronic venous hypertension (idiopathic) with inflammation of left lower extremityCMS: Chronic venous hypertension w inflammation of l low extremCan lead a claimHNone
I87.323Chronic venous hypertension (idiopathic) with inflammation of bilateral lower extremityCMS: Chronic venous htn w inflammation of bilateral low extrmCan lead a claimHNone
I87.329Chronic venous hypertension (idiopathic) with inflammation of unspecified lower extremityCMS: Chronic venous hypertension w inflammation of unsp low extrmCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
I87.33 Chronic venous hypertension (idiopathic) with ulcer and inflammation
I87.331Chronic venous hypertension (idiopathic) with ulcer and inflammation of right lower extremityCMS: Chronic venous htn w ulcer and inflammation of r low extremCan lead a claimCNone
I87.332Chronic venous hypertension (idiopathic) with ulcer and inflammation of left lower extremityCMS: Chronic venous htn w ulcer and inflammation of l low extremCan lead a claimCNone
I87.333Chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremityCMS: Chronic venous htn w ulcer and inflam of bilateral low extrmCan lead a claimCNone
I87.339Chronic venous hypertension (idiopathic) with ulcer and inflammation of unspecified lower extremityCMS: Chronic venous htn w ulcer and inflam of unsp low extrmCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
I87.39 Chronic venous hypertension (idiopathic) with other complications
I87.391Chronic venous hypertension (idiopathic) with other complications of right lower extremityCMS: Chronic venous hypertension w oth comp of r low extremCan lead a claimHNone
I87.392Chronic venous hypertension (idiopathic) with other complications of left lower extremityCMS: Chronic venous hypertension w oth comp of l low extremCan lead a claimHNone
I87.393Chronic venous hypertension (idiopathic) with other complications of bilateral lower extremityCMS: Chronic venous htn w oth comp of bilateral low extrmCan lead a claimHNone
I87.399Chronic venous hypertension (idiopathic) with other complications of unspecified lower extremityCMS: Chronic venous hypertension w oth comp of unsp low extrmCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
I87.8Other specified disorders of veinsCan lead a claimHNone
I87.9Disorder of vein, unspecifiedCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

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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