ICD-10 · PDGM grouping

I80-I89 — Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified

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

304

No clinical group

A period cannot be grouped from these.

Barred as primary

CMS rejects these in the primary position.

Where these codes group

174 of the 304 codes in I80-I89 group to MMTA - Cardiac and Circulatory, but the range is not uniform — it spreads across 3 clinical groups. A further 82 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.

Every code in I80-I89

Descriptions are CMS’s own, abbreviated as CMS abbreviates them.

Code	Description	Clinical group	Primary position
I8000	Phlbts and thombophlb of superfic vessels of unsp low extrm	None	Cannot group
I8001	Phlebitis and thombophlb of superfic vessels of r low extrem	H	Accepted
I8002	Phlebitis and thombophlb of superfic vessels of l low extrem	H	Accepted
I8003	Phlbts and thombophlb of superfic vessels of low extrm, bi	H	Accepted
I8010	Phlebitis and thrombophlebitis of unspecified femoral vein	None	Too unspecified
I8011	Phlebitis and thrombophlebitis of right femoral vein	H	Accepted
I8012	Phlebitis and thrombophlebitis of left femoral vein	H	Accepted
I8013	Phlebitis and thrombophlebitis of femoral vein, bilateral	H	Accepted
I80201	Phlbts and thombophlb of unsp deep vessels of r low extrem	H	Accepted
I80202	Phlbts and thombophlb of unsp deep vessels of l low extrem	H	Accepted
I80203	Phlbts and thombophlb of unsp deep vessels of low extrm, bi	H	Accepted
I80209	Phlbts and thombophlb of unsp deep vessels of unsp low extrm	None	Too unspecified
I80211	Phlebitis and thrombophlebitis of right iliac vein	H	Accepted
I80212	Phlebitis and thrombophlebitis of left iliac vein	H	Accepted
I80213	Phlebitis and thrombophlebitis of iliac vein, bilateral	H	Accepted
I80219	Phlebitis and thrombophlebitis of unspecified iliac vein	None	Too unspecified
I80221	Phlebitis and thrombophlebitis of right popliteal vein	H	Accepted
I80222	Phlebitis and thrombophlebitis of left popliteal vein	H	Accepted
I80223	Phlebitis and thrombophlebitis of popliteal vein, bilateral	H	Accepted
I80229	Phlebitis and thrombophlebitis of unspecified popliteal vein	None	Too unspecified
I80231	Phlebitis and thrombophlebitis of right tibial vein	H	Accepted
I80232	Phlebitis and thrombophlebitis of left tibial vein	H	Accepted
I80233	Phlebitis and thrombophlebitis of tibial vein, bilateral	H	Accepted
I80239	Phlebitis and thrombophlebitis of unspecified tibial vein	None	Too unspecified
I80241	Phlebitis and thrombophlebitis of right peroneal vein	H	Accepted
I80242	Phlebitis and thrombophlebitis of left peroneal vein	H	Accepted
I80243	Phlebitis and thrombophlebitis of peroneal vein, bilateral	H	Accepted
I80249	Phlebitis and thrombophlebitis of unspecified peroneal vein	None	Too unspecified
I80251	Phlebitis and thrombophlebitis of right calf muscular vein	H	Accepted
I80252	Phlebitis and thrombophlebitis of left calf muscular vein	H	Accepted
I80253	Phlebitis and thombophlb of calf muscular vein, bilateral	H	Accepted
I80259	Phlebitis and thombophlb of unspecified calf muscular vein	None	Cannot group
I80291	Phlebitis and thombophlb of deep vessels of r low extrem	H	Accepted
I80292	Phlebitis and thombophlb of deep vessels of l low extrem	H	Accepted
I80293	Phlebitis and thombophlb of deep vessels of low extrm, bi	H	Accepted
I80299	Phlebitis and thombophlb of deep vessels of unsp low extrm	None	Too unspecified
I803	Phlebitis and thrombophlebitis of lower extremities, unsp	H	Accepted
I808	Phlebitis and thrombophlebitis of other sites	H	Accepted
I809	Phlebitis and thrombophlebitis of unspecified site	None	Cannot group
I81	Portal vein thrombosis	H	Accepted
I820	Budd-Chiari syndrome	H	Accepted
I821	Thrombophlebitis migrans	H	Accepted
I82210	Acute embolism and thrombosis of superior vena cava	H	Accepted
I82211	Chronic embolism and thrombosis of superior vena cava	H	Accepted
I82220	Acute embolism and thrombosis of inferior vena cava	H	Accepted
I82221	Chronic embolism and thrombosis of inferior vena cava	H	Accepted
I82290	Acute embolism and thrombosis of other thoracic veins	H	Accepted
I82291	Chronic embolism and thrombosis of other thoracic veins	H	Accepted
I823	Embolism and thrombosis of renal vein	H	Accepted
I82401	Acute embolism and thombos unsp deep veins of r low extrem	H	Accepted
I82402	Acute embolism and thombos unsp deep veins of l low extrem	H	Accepted
I82403	Acute embolism and thombos unsp deep veins of low extrm, bi	H	Accepted
I82409	Acute embolism and thombos unsp deep vn unsp lower extremity	None	Too unspecified
I82411	Acute embolism and thrombosis of right femoral vein	H	Accepted
I82412	Acute embolism and thrombosis of left femoral vein	H	Accepted
I82413	Acute embolism and thrombosis of femoral vein, bilateral	H	Accepted
I82419	Acute embolism and thrombosis of unspecified femoral vein	None	Too unspecified
I82421	Acute embolism and thrombosis of right iliac vein	H	Accepted
I82422	Acute embolism and thrombosis of left iliac vein	H	Accepted
I82423	Acute embolism and thrombosis of iliac vein, bilateral	H	Accepted
I82429	Acute embolism and thrombosis of unspecified iliac vein	None	Too unspecified
I82431	Acute embolism and thrombosis of right popliteal vein	H	Accepted
I82432	Acute embolism and thrombosis of left popliteal vein	H	Accepted
I82433	Acute embolism and thrombosis of popliteal vein, bilateral	H	Accepted
I82439	Acute embolism and thrombosis of unspecified popliteal vein	None	Too unspecified
I82441	Acute embolism and thrombosis of right tibial vein	H	Accepted
I82442	Acute embolism and thrombosis of left tibial vein	H	Accepted
I82443	Acute embolism and thrombosis of tibial vein, bilateral	H	Accepted
I82449	Acute embolism and thrombosis of unspecified tibial vein	None	Too unspecified
I82451	Acute embolism and thrombosis of right peroneal vein	H	Accepted
I82452	Acute embolism and thrombosis of left peroneal vein	H	Accepted
I82453	Acute embolism and thrombosis of peroneal vein, bilateral	H	Accepted
I82459	Acute embolism and thrombosis of unspecified peroneal vein	None	Too unspecified
I82461	Acute embolism and thrombosis of right calf muscular vein	H	Accepted
I82462	Acute embolism and thrombosis of left calf muscular vein	H	Accepted
I82463	Acute embolism and thombos of calf muscular vein, bilateral	H	Accepted
I82469	Acute embolism and thombos unsp calf muscular vein	None	Cannot group
I82491	Acute embolism and thrombosis of deep vein of r low extrem	H	Accepted
I82492	Acute embolism and thrombosis of deep vein of l low extrem	H	Accepted
I82493	Acute embolism and thombos of deep vein of low extrm, bi	H	Accepted
I82499	Acute embolism and thrombosis of deep vein of unsp low extrm	None	Too unspecified
I824Y1	Ac emblsm and thombos unsp deep veins of r prox low extrm	H	Accepted
I824Y2	Ac emblsm and thombos unsp deep veins of left prox low extrm	H	Accepted
I824Y3	Ac emblsm and thombos unsp deep veins of prox low extrm, bi	H	Accepted
I824Y9	Acute emblsm and thombos unsp deep vn unsp prox low extrm	None	Too unspecified
I824Z1	Ac emblsm and thombos unsp deep veins of r dist low extrm	H	Accepted
I824Z2	Ac emblsm and thombos unsp deep veins of left dist low extrm	H	Accepted
I824Z3	Ac emblsm and thombos unsp deep veins of dist low extrm, bi	H	Accepted
I824Z9	Acute emblsm and thombos unsp deep vn unsp distal low extrm	None	Too unspecified
I82501	Chronic embolism and thombos unsp deep veins of r low extrem	H	Accepted
I82502	Chronic embolism and thombos unsp deep veins of l low extrem	H	Accepted
I82503	Chronic emblsm and thombos unsp deep veins of low extrm, bi	H	Accepted
I82509	Chronic embolism and thombos unsp deep vn unsp low extrm	None	Too unspecified
I82511	Chronic embolism and thrombosis of right femoral vein	H	Accepted
I82512	Chronic embolism and thrombosis of left femoral vein	H	Accepted
I82513	Chronic embolism and thrombosis of femoral vein, bilateral	H	Accepted
I82519	Chronic embolism and thrombosis of unspecified femoral vein	None	Too unspecified
I82521	Chronic embolism and thrombosis of right iliac vein	H	Accepted
I82522	Chronic embolism and thrombosis of left iliac vein	H	Accepted
I82523	Chronic embolism and thrombosis of iliac vein, bilateral	H	Accepted
I82529	Chronic embolism and thrombosis of unspecified iliac vein	None	Too unspecified
I82531	Chronic embolism and thrombosis of right popliteal vein	H	Accepted
I82532	Chronic embolism and thrombosis of left popliteal vein	H	Accepted
I82533	Chronic embolism and thrombosis of popliteal vein, bilateral	H	Accepted
I82539	Chronic embolism and thrombosis of unsp popliteal vein	None	Too unspecified
I82541	Chronic embolism and thrombosis of right tibial vein	H	Accepted
I82542	Chronic embolism and thrombosis of left tibial vein	H	Accepted
I82543	Chronic embolism and thrombosis of tibial vein, bilateral	H	Accepted
I82549	Chronic embolism and thrombosis of unspecified tibial vein	None	Too unspecified
I82551	Chronic embolism and thrombosis of right peroneal vein	H	Accepted
I82552	Chronic embolism and thrombosis of left peroneal vein	H	Accepted
I82553	Chronic embolism and thrombosis of peroneal vein, bilateral	H	Accepted
I82559	Chronic embolism and thrombosis of unspecified peroneal vein	None	Too unspecified
I82561	Chronic embolism and thrombosis of right calf muscular vein	H	Accepted
I82562	Chronic embolism and thrombosis of left calf muscular vein	H	Accepted
I82563	Chronic embolism and thombos of calf muscular vein, bi	H	Accepted
I82569	Chronic embolism and thombos unsp calf muscular vein	None	Cannot group
I82591	Chronic embolism and thrombosis of deep vein of r low extrem	H	Accepted
I82592	Chronic embolism and thrombosis of deep vein of l low extrem	H	Accepted
I82593	Chronic embolism and thombos of deep vein of low extrm, bi	H	Accepted
I82599	Chronic embolism and thombos of deep vein of unsp low extrm	None	Too unspecified
I825Y1	Chr emblsm and thombos unsp deep veins of r prox low extrm	H	Accepted
I825Y2	Chr emblsm and thombos unsp deep vn of left prox low extrm	H	Accepted
I825Y3	Chr emblsm and thombos unsp deep veins of prox low extrm, bi	H	Accepted
I825Y9	Chronic emblsm and thombos unsp deep vn unsp prox low extrm	None	Too unspecified
I825Z1	Chr emblsm and thombos unsp deep veins of r dist low extrm	H	Accepted
I825Z2	Chr emblsm and thombos unsp deep vn of left dist low extrm	H	Accepted
I825Z3	Chr emblsm and thombos unsp deep veins of dist low extrm, bi	H	Accepted
I825Z9	Chr emblsm and thombos unsp deep vn unsp distal low extrm	None	Too unspecified
I82601	Acute embolism and thombos unsp veins of r up extrem	H	Accepted
I82602	Acute embolism and thombos unsp veins of l up extrem	H	Accepted
I82603	Acute embolism and thombos unsp veins of up extrem, bi	H	Accepted
I82609	Acute embolism and thombos unsp vn unsp upper extremity	None	Too unspecified
I82611	Acute embolism and thombos of superfic veins of r up extrem	H	Accepted
I82612	Acute embolism and thombos of superfic veins of l up extrem	H	Accepted
I82613	Acute emblsm and thombos of superfic veins of up extrem, bi	H	Accepted
I82619	Acute embolism and thrombosis of superfic vn unsp up extrem	None	Too unspecified
I82621	Acute embolism and thrombosis of deep veins of r up extrem	H	Accepted
I82622	Acute embolism and thrombosis of deep veins of l up extrem	H	Accepted
I82623	Acute embolism and thombos of deep veins of up extrem, bi	H	Accepted
I82629	Acute embolism and thrombosis of deep vn unsp up extrem	None	Too unspecified
I82701	Chronic embolism and thombos unsp veins of r up extrem	H	Accepted
I82702	Chronic embolism and thombos unsp veins of l up extrem	H	Accepted
I82703	Chronic embolism and thombos unsp veins of up extrem, bi	H	Accepted
I82709	Chronic embolism and thombos unsp vn unsp upper extremity	None	Too unspecified
I82711	Chronic emblsm and thombos of superfic veins of r up extrem	H	Accepted
I82712	Chronic emblsm and thombos of superfic veins of l up extrem	H	Accepted
I82713	Chr emblsm and thombos of superfic veins of up extrem, bi	H	Accepted
I82719	Chronic embolism and thombos of superfic vn unsp up extrem	None	Too unspecified
I82721	Chronic embolism and thrombosis of deep veins of r up extrem	H	Accepted
I82722	Chronic embolism and thrombosis of deep veins of l up extrem	H	Accepted
I82723	Chronic embolism and thombos of deep veins of up extrem, bi	H	Accepted
I82729	Chronic embolism and thrombosis of deep vn unsp up extrem	None	Too unspecified
I82811	Embolism and thrombosis of superficial veins of r low extrem	H	Accepted
I82812	Embolism and thrombosis of superficial veins of l low extrem	H	Accepted
I82813	Embolism and thombos of superfic veins of low extrm, bi	H	Accepted
I82819	Embolism and thrombosis of superficial vn unsp low extrm	None	Too unspecified
I82890	Acute embolism and thrombosis of other specified veins	H	Accepted
I82891	Chronic embolism and thrombosis of other specified veins	H	Accepted
I8290	Acute embolism and thrombosis of unspecified vein	None	Too unspecified
I8291	Chronic embolism and thrombosis of unspecified vein	None	Too unspecified
I82A11	Acute embolism and thrombosis of right axillary vein	H	Accepted
I82A12	Acute embolism and thrombosis of left axillary vein	H	Accepted
I82A13	Acute embolism and thrombosis of axillary vein, bilateral	H	Accepted
I82A19	Acute embolism and thrombosis of unspecified axillary vein	None	Too unspecified
I82A21	Chronic embolism and thrombosis of right axillary vein	H	Accepted
I82A22	Chronic embolism and thrombosis of left axillary vein	H	Accepted
I82A23	Chronic embolism and thrombosis of axillary vein, bilateral	H	Accepted
I82A29	Chronic embolism and thrombosis of unspecified axillary vein	None	Too unspecified
I82B11	Acute embolism and thrombosis of right subclavian vein	H	Accepted
I82B12	Acute embolism and thrombosis of left subclavian vein	H	Accepted
I82B13	Acute embolism and thrombosis of subclavian vein, bilateral	H	Accepted
I82B19	Acute embolism and thrombosis of unspecified subclavian vein	None	Too unspecified
I82B21	Chronic embolism and thrombosis of right subclavian vein	H	Accepted
I82B22	Chronic embolism and thrombosis of left subclavian vein	H	Accepted
I82B23	Chronic embolism and thrombosis of subclav vein, bilateral	H	Accepted
I82B29	Chronic embolism and thrombosis of unsp subclavian vein	None	Too unspecified
I82C11	Acute embolism and thrombosis of right internal jugular vein	H	Accepted
I82C12	Acute embolism and thrombosis of left internal jugular vein	H	Accepted
I82C13	Acute embolism and thrombosis of int jugular vein, bilateral	H	Accepted
I82C19	Acute embolism and thrombosis of unsp internal jugular vein	None	Too unspecified
I82C21	Chronic embolism and thrombosis of r int jugular vein	H	Accepted
I82C22	Chronic embolism and thrombosis of l int jugular vein	H	Accepted
I82C23	Chronic embolism and thombos of int jugular vein, bilateral	H	Accepted
I82C29	Chronic embolism and thombos unsp internal jugular vein	None	Too unspecified
I83001	Varicose veins of unsp lower extremity with ulcer of thigh	None	Cannot group
I83002	Varicose veins of unsp lower extremity with ulcer of calf	None	Cannot group
I83003	Varicose veins of unsp lower extremity with ulcer of ankle	None	Cannot group
I83004	Varicos vn unsp lower extremity w ulcer of heel and midfoot	None	Cannot group
I83005	Varicos vn unsp lower extremity w ulcer oth part of foot	None	Cannot group
I83008	Varicos vn unsp low extrm w ulcer oth part of lower leg	None	Cannot group
I83009	Varicose veins of unsp lower extremity w ulcer of unsp site	None	Cannot group
I83011	Varicose veins of right lower extremity with ulcer of thigh	C	Accepted
I83012	Varicose veins of right lower extremity with ulcer of calf	C	Accepted
I83013	Varicose veins of right lower extremity with ulcer of ankle	C	Accepted
I83014	Varicose veins of r low extrem w ulcer of heel and midfoot	C	Accepted
I83015	Varicose veins of r low extrem w ulcer oth part of foot	C	Accepted
I83018	Varicose veins of r low extrem w ulcer oth part of lower leg	C	Accepted
I83019	Varicose veins of right lower extremity w ulcer of unsp site	None	Cannot group
I83021	Varicose veins of left lower extremity with ulcer of thigh	C	Accepted
I83022	Varicose veins of left lower extremity with ulcer of calf	C	Accepted
I83023	Varicose veins of left lower extremity with ulcer of ankle	C	Accepted
I83024	Varicose veins of l low extrem w ulcer of heel and midfoot	C	Accepted
I83025	Varicose veins of l low extrem w ulcer oth part of foot	C	Accepted
I83028	Varicose veins of l low extrem w ulcer oth part of lower leg	C	Accepted
I83029	Varicose veins of left lower extremity w ulcer of unsp site	None	Cannot group
I8310	Varicose veins of unsp lower extremity with inflammation	None	Cannot group
I8311	Varicose veins of right lower extremity with inflammation	H	Accepted
I8312	Varicose veins of left lower extremity with inflammation	H	Accepted
I83201	Varicos vn unsp low extrm w ulc of thigh and inflammation	None	Cannot group
I83202	Varicos vn unsp low extrm w ulc of calf and inflammation	None	Cannot group
I83203	Varicos vn unsp low extrm w ulc of ankle and inflammation	None	Cannot group
I83204	Varicos vn unsp low extrm w ulc of heel and midft and inflam	None	Cannot group
I83205	Varicos vn unsp low extrm w ulc oth part of foot and inflam	None	Cannot group
I83208	Varicos vn unsp low extrm w ulc oth prt low extrm and inflam	None	Cannot group
I83209	Varicos vn unsp low extrm w ulc of unsp site and inflam	None	Cannot group
I83211	Varicos vn of r low extrem w ulc of thigh and inflammation	C	Accepted
I83212	Varicos vn of r low extrem w ulc of calf and inflammation	C	Accepted
I83213	Varicos vn of r low extrem w ulc of ankle and inflammation	C	Accepted
I83214	Varicos vn of r low extrem w ulc of heel & midft and inflam	C	Accepted
I83215	Varicos vn of r low extrem w ulc oth part of foot and inflam	C	Accepted
I83218	Varicos vn of r low extrem w ulc oth prt low extrm & inflam	C	Accepted
I83219	Varicos vn of r low extrem w ulc of unsp site and inflam	None	Cannot group
I83221	Varicos vn of l low extrem w ulc of thigh and inflammation	C	Accepted
I83222	Varicos vn of l low extrem w ulc of calf and inflammation	C	Accepted
I83223	Varicos vn of l low extrem w ulc of ankle and inflammation	C	Accepted
I83224	Varicos vn of l low extrem w ulc of heel & midft and inflam	C	Accepted
I83225	Varicos vn of l low extrem w ulc oth part of foot and inflam	C	Accepted
I83228	Varicos vn of l low extrem w ulc oth prt low extrm & inflam	C	Accepted
I83229	Varicos vn of l low extrem w ulc of unsp site and inflam	None	Cannot group
I83811	Varicose veins of right lower extremity with pain	H	Accepted
I83812	Varicose veins of left lower extremity with pain	H	Accepted
I83813	Varicose veins of bilateral lower extremities with pain	H	Accepted
I83819	Varicose veins of unspecified lower extremity with pain	None	Cannot group
I83891	Varicose veins of r low extrem with other complications	H	Accepted
I83892	Varicose veins of l low extrem with other complications	H	Accepted
I83893	Varicose veins of bi low extrem w oth complications	H	Accepted
I83899	Varicos vn unsp lower extremity with other complications	None	Cannot group
I8390	Asymptomatic varicose veins of unspecified lower extremity	None	Cannot group
I8391	Asymptomatic varicose veins of right lower extremity	A	Accepted
I8392	Asymptomatic varicose veins of left lower extremity	A	Accepted
I8393	Asymptomatic varicose veins of bilateral lower extremities	A	Accepted
I8500	Esophageal varices without bleeding	H	Accepted
I8501	Esophageal varices with bleeding	H	Accepted
I8510	Secondary esophageal varices without bleeding	None	Cannot group
I8511	Secondary esophageal varices with bleeding	None	Cannot group
I860	Sublingual varices	H	Accepted
I861	Scrotal varices	H	Accepted
I862	Pelvic varices	H	Accepted
I863	Vulval varices	H	Accepted
I864	Gastric varices	H	Accepted
I868	Varicose veins of other specified sites	H	Accepted
I87001	Postthrombotic syndrome w/o complications of r low extrem	A	Accepted
I87002	Postthrombotic syndrome w/o complications of l low extrem	A	Accepted
I87003	Postthrom syndrome w/o complications of bilateral low extrm	A	Accepted
I87009	Postthrombotic syndrome w/o complications of unsp extremity	None	Cannot group
I87011	Postthrombotic syndrome with ulcer of right lower extremity	C	Accepted
I87012	Postthrombotic syndrome with ulcer of left lower extremity	C	Accepted
I87013	Postthrombotic syndrome w ulcer of bilateral lower extremity	C	Accepted
I87019	Postthrombotic syndrome with ulcer of unsp lower extremity	None	Too unspecified
I87021	Postthrombotic syndrome w inflammation of r low extrem	H	Accepted
I87022	Postthrombotic syndrome w inflammation of l low extrem	H	Accepted
I87023	Postthrom syndrome w inflammation of bilateral low extrm	H	Accepted
I87029	Postthrombotic syndrome w inflammation of unsp low extrm	None	Cannot group
I87031	Postthrom syndrome w ulcer and inflammation of r low extrem	C	Accepted
I87032	Postthrom syndrome w ulcer and inflammation of l low extrem	C	Accepted
I87033	Postthrom syndrome w ulcer and inflam of bilateral low extrm	C	Accepted
I87039	Postthrom syndrome w ulcer and inflam of unsp low extrm	None	Too unspecified
I87091	Postthrombotic syndrome w oth complications of r low extrem	H	Accepted
I87092	Postthrombotic syndrome w oth complications of l low extrem	H	Accepted
I87093	Postthrom syndrome w oth comp of bilateral low extrm	H	Accepted
I87099	Postthrom syndrome w oth complications of unsp low extrm	None	Cannot group
I871	Compression of vein	A	Accepted
I872	Venous insufficiency (chronic) (peripheral)	C	Accepted
I87301	Chronic venous hypertension w/o comp of r low extrem	A	Accepted
I87302	Chronic venous hypertension w/o comp of l low extrem	A	Accepted
I87303	Chronic venous hypertension w/o comp of bilateral low extrm	A	Accepted
I87309	Chronic venous hypertension w/o comp of unsp low extrm	None	Cannot group
I87311	Chronic venous hypertension w ulcer of r low extrem	C	Accepted
I87312	Chronic venous hypertension w ulcer of l low extrem	C	Accepted
I87313	Chronic venous hypertension w ulcer of bilateral low extrm	C	Accepted
I87319	Chronic venous hypertension w ulcer of unsp low extrm	None	Too unspecified
I87321	Chronic venous hypertension w inflammation of r low extrem	H	Accepted
I87322	Chronic venous hypertension w inflammation of l low extrem	H	Accepted
I87323	Chronic venous htn w inflammation of bilateral low extrm	H	Accepted
I87329	Chronic venous hypertension w inflammation of unsp low extrm	None	Cannot group
I87331	Chronic venous htn w ulcer and inflammation of r low extrem	C	Accepted
I87332	Chronic venous htn w ulcer and inflammation of l low extrem	C	Accepted
I87333	Chronic venous htn w ulcer and inflam of bilateral low extrm	C	Accepted
I87339	Chronic venous htn w ulcer and inflam of unsp low extrm	None	Too unspecified
I87391	Chronic venous hypertension w oth comp of r low extrem	H	Accepted
I87392	Chronic venous hypertension w oth comp of l low extrem	H	Accepted
I87393	Chronic venous htn w oth comp of bilateral low extrm	H	Accepted
I87399	Chronic venous hypertension w oth comp of unsp low extrm	None	Cannot group
I878	Other specified disorders of veins	H	Accepted
I879	Disorder of vein, unspecified	None	Cannot group
I880	Nonspecific mesenteric lymphadenitis	H	Accepted
I881	Chronic lymphadenitis, except mesenteric	H	Accepted
I888	Other nonspecific lymphadenitis	H	Accepted
I889	Nonspecific lymphadenitis, unspecified	None	Cannot group
I890	Lymphedema, not elsewhere classified	C	Accepted
I891	Lymphangitis	H	Accepted
I898	Oth noninfective disorders of lymphatic vessels and nodes	H	Accepted
I899	Noninfective disorder of lymphatic vessels and nodes, unsp	None	Cannot group

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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I80-I89 — Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified

Where these codes group

Every code in I80-I89

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