ICD-10 · PDGM grouping

C81-C96 — Malignant neoplasms of lymphoid, hematopoietic and related tissue

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

533

No clinical group

A period cannot be grouped from these.

Barred as primary

CMS rejects these in the primary position.

Where these codes group

533 of the 533 codes in C81-C96 group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases. Every code here is assigned a group.

KMMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases533

Every code in C81-C96

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

Code	Description	Clinical group	Primary position
C8100	Nodular lymphocyte predominant Hodgkin lymphoma, unsp site	K	Accepted
C8101	Nodlr lymphocy predom Hdgkn lymph, nodes of head, face, & nk	K	Accepted
C8102	Nodular lymphocy predom Hodgkin lymphoma, intrathorac nodes	K	Accepted
C8103	Nodular lymphocyte predom Hodgkin lymphoma, intra-abd nodes	K	Accepted
C8104	Nodlr lymphocy predom Hdgkn lymph, nodes of axla and upr lmb	K	Accepted
C8105	Nodlr lymphocy predom Hdgkn lymph,nodes of ing rgn & low lmb	K	Accepted
C8106	Nodular lymphocyte predom Hodgkin lymphoma, intrapelv nodes	K	Accepted
C8107	Nodular lymphocyte predominant Hodgkin lymphoma, spleen	K	Accepted
C8108	Nodular lymphocyte predom Hodgkin lymphoma, nodes mult site	K	Accepted
C8109	Nodlr lymphocy predom Hdgkn lymph, extrnod & solid org site	K	Accepted
C810A	Nodular lymphocyte predom Hodgkin lymphoma, in remission	K	Accepted
C8110	Nodular sclerosis Hodgkin lymphoma, unspecified site	K	Accepted
C8111	Nodular scler Hodgkin lymph, nodes of head, face, and neck	K	Accepted
C8112	Nodular sclerosis Hodgkin lymphoma, intrathorac lymph nodes	K	Accepted
C8113	Nodular sclerosis Hodgkin lymphoma, intra-abd lymph nodes	K	Accepted
C8114	Nodular scler Hodgkin lymph, nodes of axilla and upper limb	K	Accepted
C8115	Nodlr scler Hdgkn lymph, nodes of ing region and lower limb	K	Accepted
C8116	Nodular sclerosis Hodgkin lymphoma, intrapelvic lymph nodes	K	Accepted
C8117	Nodular sclerosis Hodgkin lymphoma, spleen	K	Accepted
C8118	Nodular sclerosis Hodgkin lymphoma, lymph nodes mult site	K	Accepted
C8119	Nodular scler Hodgkin lymph, extrnod and solid organ sites	K	Accepted
C811A	Nodular sclerosis Hodgkin lymphoma, in remission	K	Accepted
C8120	Mixed cellularity Hodgkin lymphoma, unspecified site	K	Accepted
C8121	Mixed cellular Hodgkin lymph, nodes of head, face, and neck	K	Accepted
C8122	Mixed cellularity Hodgkin lymphoma, intrathorac lymph nodes	K	Accepted
C8123	Mixed cellularity Hodgkin lymphoma, intra-abd lymph nodes	K	Accepted
C8124	Mixed cellular Hodgkin lymph, nodes of axilla and upper limb	K	Accepted
C8125	Mixed cellular Hdgkn lymph, nodes of ing rgn and lower limb	K	Accepted
C8126	Mixed cellularity Hodgkin lymphoma, intrapelvic lymph nodes	K	Accepted
C8127	Mixed cellularity Hodgkin lymphoma, spleen	K	Accepted
C8128	Mixed cellularity Hodgkin lymphoma, lymph nodes mult site	K	Accepted
C8129	Mixed cellular Hodgkin lymph, extrnod and solid organ sites	K	Accepted
C812A	Mixed cellularity Hodgkin lymphoma, in remission	K	Accepted
C8130	Lymphocyte depleted Hodgkin lymphoma, unspecified site	K	Accepted
C8131	Lymphocy deplet Hodgkin lymph, nodes of head, face, and neck	K	Accepted
C8132	Lymphocyte depleted Hodgkin lymphoma, intrathorac nodes	K	Accepted
C8133	Lymphocyte depleted Hodgkin lymphoma, intra-abd lymph nodes	K	Accepted
C8134	Lymphocy deplet Hdgkn lymph, nodes of axilla and upper limb	K	Accepted
C8135	Lymphocy deplet Hdgkn lymph, nodes of ing rgn and lower limb	K	Accepted
C8136	Lymphocyte depleted Hodgkin lymphoma, intrapelv lymph nodes	K	Accepted
C8137	Lymphocyte depleted Hodgkin lymphoma, spleen	K	Accepted
C8138	Lymphocyte depleted Hodgkin lymphoma, lymph nodes mult site	K	Accepted
C8139	Lymphocy deplet Hodgkin lymph, extrnod and solid organ sites	K	Accepted
C813A	Lymphocyte depleted Hodgkin lymphoma, in remission	K	Accepted
C8140	Lymphocyte-rich Hodgkin lymphoma, unspecified site	K	Accepted
C8141	Lymp-rich Hodgkin lymphoma, nodes of head, face, and neck	K	Accepted
C8142	Lymphocyte-rich Hodgkin lymphoma, intrathoracic lymph nodes	K	Accepted
C8143	Lymphocyte-rich Hodgkin lymphoma, intra-abd lymph nodes	K	Accepted
C8144	Lymp-rich Hodgkin lymphoma, nodes of axilla and upper limb	K	Accepted
C8145	Lymp-rich Hodgkin lymph, nodes of ing region and lower limb	K	Accepted
C8146	Lymphocyte-rich Hodgkin lymphoma, intrapelvic lymph nodes	K	Accepted
C8147	Lymphocyte-rich Hodgkin lymphoma, spleen	K	Accepted
C8148	Lymphocyte-rich Hodgkin lymphoma, lymph nodes mult site	K	Accepted
C8149	Lymp-rich Hodgkin lymphoma, extranodal and solid organ sites	K	Accepted
C814A	Lymphocyte-rich Hodgkin lymphoma, in remission	K	Accepted
C8170	Other Hodgkin lymphoma, unspecified site	K	Accepted
C8171	Other Hodgkin lymphoma, lymph nodes of head, face, and neck	K	Accepted
C8172	Other Hodgkin lymphoma, intrathoracic lymph nodes	K	Accepted
C8173	Other Hodgkin lymphoma, intra-abdominal lymph nodes	K	Accepted
C8174	Other Hodgkin lymphoma, lymph nodes of axilla and upper limb	K	Accepted
C8175	Other Hodgkin lymphoma, nodes of ing region and lower limb	K	Accepted
C8176	Other Hodgkin lymphoma, intrapelvic lymph nodes	K	Accepted
C8177	Other Hodgkin lymphoma, spleen	K	Accepted
C8178	Other Hodgkin lymphoma, lymph nodes of multiple sites	K	Accepted
C8179	Other Hodgkin lymphoma, extranodal and solid organ sites	K	Accepted
C817A	Other Hodgkin lymphoma, in remission	K	Accepted
C8190	Hodgkin lymphoma, unspecified, unspecified site	K	Accepted
C8191	Hodgkin lymphoma, unsp, lymph nodes of head, face, and neck	K	Accepted
C8192	Hodgkin lymphoma, unspecified, intrathoracic lymph nodes	K	Accepted
C8193	Hodgkin lymphoma, unspecified, intra-abdominal lymph nodes	K	Accepted
C8194	Hodgkin lymphoma, unsp, lymph nodes of axilla and upper limb	K	Accepted
C8195	Hodgkin lymphoma, unsp, nodes of ing region and lower limb	K	Accepted
C8196	Hodgkin lymphoma, unspecified, intrapelvic lymph nodes	K	Accepted
C8197	Hodgkin lymphoma, unspecified, spleen	K	Accepted
C8198	Hodgkin lymphoma, unspecified, lymph nodes of multiple sites	K	Accepted
C8199	Hodgkin lymphoma, unsp, extranodal and solid organ sites	K	Accepted
C819A	Hodgkin lymphoma, unspecified, in remission	K	Accepted
C8200	Follicular lymphoma grade I, unspecified site	K	Accepted
C8201	Follicular lymphoma grade I, nodes of head, face, and neck	K	Accepted
C8202	Follicular lymphoma grade I, intrathoracic lymph nodes	K	Accepted
C8203	Follicular lymphoma grade I, intra-abdominal lymph nodes	K	Accepted
C8204	Follicular lymphoma grade I, nodes of axilla and upper limb	K	Accepted
C8205	Foliclar lymph grade I, nodes of ing region and lower limb	K	Accepted
C8206	Follicular lymphoma grade I, intrapelvic lymph nodes	K	Accepted
C8207	Follicular lymphoma grade I, spleen	K	Accepted
C8208	Follicular lymphoma grade I, lymph nodes of multiple sites	K	Accepted
C8209	Follicular lymphoma grade I, extrnod and solid organ sites	K	Accepted
C820A	Follicular lymphoma grade I, in remission	K	Accepted
C8210	Follicular lymphoma grade II, unspecified site	K	Accepted
C8211	Follicular lymphoma grade II, nodes of head, face, and neck	K	Accepted
C8212	Follicular lymphoma grade II, intrathoracic lymph nodes	K	Accepted
C8213	Follicular lymphoma grade II, intra-abdominal lymph nodes	K	Accepted
C8214	Follicular lymphoma grade II, nodes of axilla and upper limb	K	Accepted
C8215	Foliclar lymph grade II, nodes of ing region and lower limb	K	Accepted
C8216	Follicular lymphoma grade II, intrapelvic lymph nodes	K	Accepted
C8217	Follicular lymphoma grade II, spleen	K	Accepted
C8218	Follicular lymphoma grade II, lymph nodes of multiple sites	K	Accepted
C8219	Follicular lymphoma grade II, extrnod and solid organ sites	K	Accepted
C821A	Follicular lymphoma grade II, in remission	K	Accepted
C8220	Follicular lymphoma grade III, unspecified, unspecified site	K	Accepted
C8221	Foliclar lymph grade III, unsp, nodes of head, face, and nk	K	Accepted
C8222	Follicular lymphoma grade III, unsp, intrathorac lymph nodes	K	Accepted
C8223	Follicular lymphoma grade III, unsp, intra-abd lymph nodes	K	Accepted
C8224	Foliclar lymph grade III, unsp, nodes of axla and upper limb	K	Accepted
C8225	Foliclar lymph grade III, unsp, nodes of ing rgn and low lmb	K	Accepted
C8226	Follicular lymphoma grade III, unsp, intrapelvic lymph nodes	K	Accepted
C8227	Follicular lymphoma grade III, unspecified, spleen	K	Accepted
C8228	Follicular lymphoma grade III, unsp, lymph nodes mult site	K	Accepted
C8229	Foliclar lymph grade III, unsp, extrnod and solid org sites	K	Accepted
C822A	Follicular lymphoma grade III, unspecified, in remission	K	Accepted
C8230	Follicular lymphoma grade IIIa, unspecified site	K	Accepted
C8231	Foliclar lymphoma grade IIIa, nodes of head, face, and neck	K	Accepted
C8232	Follicular lymphoma grade IIIa, intrathoracic lymph nodes	K	Accepted
C8233	Follicular lymphoma grade IIIa, intra-abdominal lymph nodes	K	Accepted
C8234	Foliclar lymphoma grade IIIa, nodes of axilla and upper limb	K	Accepted
C8235	Foliclar lymph grade IIIa, nodes of ing rgn and lower limb	K	Accepted
C8236	Follicular lymphoma grade IIIa, intrapelvic lymph nodes	K	Accepted
C8237	Follicular lymphoma grade IIIa, spleen	K	Accepted
C8238	Follicular lymphoma grade IIIa, lymph nodes mult site	K	Accepted
C8239	Foliclar lymphoma grade IIIa, extrnod and solid organ sites	K	Accepted
C823A	Follicular lymphoma grade IIIa, in remission	K	Accepted
C8240	Follicular lymphoma grade IIIb, unspecified site	K	Accepted
C8241	Foliclar lymphoma grade IIIb, nodes of head, face, and neck	K	Accepted
C8242	Follicular lymphoma grade IIIb, intrathoracic lymph nodes	K	Accepted
C8243	Follicular lymphoma grade IIIb, intra-abdominal lymph nodes	K	Accepted
C8244	Foliclar lymphoma grade IIIb, nodes of axilla and upper limb	K	Accepted
C8245	Foliclar lymph grade IIIb, nodes of ing rgn and lower limb	K	Accepted
C8246	Follicular lymphoma grade IIIb, intrapelvic lymph nodes	K	Accepted
C8247	Follicular lymphoma grade IIIb, spleen	K	Accepted
C8248	Follicular lymphoma grade IIIb, lymph nodes mult site	K	Accepted
C8249	Foliclar lymphoma grade IIIb, extrnod and solid organ sites	K	Accepted
C824A	Follicular lymphoma grade IIIb, in remission	K	Accepted
C8250	Diffuse follicle center lymphoma, unspecified site	K	Accepted
C8251	Diffuse folicl center lymph, nodes of head, face, and neck	K	Accepted
C8252	Diffuse follicle center lymphoma, intrathoracic lymph nodes	K	Accepted
C8253	Diffuse follicle center lymphoma, intra-abd lymph nodes	K	Accepted
C8254	Diffuse folicl center lymph, nodes of axilla and upper limb	K	Accepted
C8255	Diffus folicl cntr lymph, nodes of ing region and lower limb	K	Accepted
C8256	Diffuse follicle center lymphoma, intrapelvic lymph nodes	K	Accepted
C8257	Diffuse follicle center lymphoma, spleen	K	Accepted
C8258	Diffuse follicle center lymphoma, lymph nodes mult site	K	Accepted
C8259	Diffuse folicl center lymph, extrnod and solid organ sites	K	Accepted
C825A	Diffuse follicle center lymphoma, in remission	K	Accepted
C8260	Cutaneous follicle center lymphoma, unspecified site	K	Accepted
C8261	Cutan folicl center lymphoma, nodes of head, face, and neck	K	Accepted
C8262	Cutaneous follicle center lymphoma, intrathorac lymph nodes	K	Accepted
C8263	Cutaneous follicle center lymphoma, intra-abd lymph nodes	K	Accepted
C8264	Cutan folicl center lymphoma, nodes of axilla and upper limb	K	Accepted
C8265	Cutan folicl cntr lymph, nodes of ing region and lower limb	K	Accepted
C8266	Cutaneous follicle center lymphoma, intrapelvic lymph nodes	K	Accepted
C8267	Cutaneous follicle center lymphoma, spleen	K	Accepted
C8268	Cutaneous follicle center lymphoma, lymph nodes mult site	K	Accepted
C8269	Cutan folicl center lymphoma, extrnod and solid organ sites	K	Accepted
C826A	Cutaneous follicle center lymphoma, in remission	K	Accepted
C8280	Other types of follicular lymphoma, unspecified site	K	Accepted
C8281	Oth types of foliclar lymph, nodes of head, face, and neck	K	Accepted
C8282	Oth types of follicular lymphoma, intrathoracic lymph nodes	K	Accepted
C8283	Oth types of follicular lymphoma, intra-abd lymph nodes	K	Accepted
C8284	Oth types of foliclar lymph, nodes of axilla and upper limb	K	Accepted
C8285	Oth types of foliclar lymph, nodes of ing rgn and lower limb	K	Accepted
C8286	Other types of follicular lymphoma, intrapelvic lymph nodes	K	Accepted
C8287	Other types of follicular lymphoma, spleen	K	Accepted
C8288	Oth types of follicular lymphoma, lymph nodes mult site	K	Accepted
C8289	Oth types of foliclar lymph, extrnod and solid organ sites	K	Accepted
C828A	Other types of follicular lymphoma, in remission	K	Accepted
C8290	Follicular lymphoma, unspecified, unspecified site	K	Accepted
C8291	Follicular lymphoma, unsp, nodes of head, face, and neck	K	Accepted
C8292	Follicular lymphoma, unspecified, intrathoracic lymph nodes	K	Accepted
C8293	Follicular lymphoma, unsp, intra-abdominal lymph nodes	K	Accepted
C8294	Follicular lymphoma, unsp, nodes of axilla and upper limb	K	Accepted
C8295	Foliclar lymphoma, unsp, nodes of ing region and lower limb	K	Accepted
C8296	Follicular lymphoma, unspecified, intrapelvic lymph nodes	K	Accepted
C8297	Follicular lymphoma, unspecified, spleen	K	Accepted
C8298	Follicular lymphoma, unsp, lymph nodes of multiple sites	K	Accepted
C8299	Follicular lymphoma, unsp, extranodal and solid organ sites	K	Accepted
C829A	Follicular lymphoma, unspecified, in remission	K	Accepted
C8300	Small cell B-cell lymphoma, unspecified site	K	Accepted
C8301	Small cell B-cell lymphoma, nodes of head, face, and neck	K	Accepted
C8302	Small cell B-cell lymphoma, intrathoracic lymph nodes	K	Accepted
C8303	Small cell B-cell lymphoma, intra-abdominal lymph nodes	K	Accepted
C8304	Small cell B-cell lymphoma, nodes of axilla and upper limb	K	Accepted
C8305	Small cell B-cell lymph, nodes of ing region and lower limb	K	Accepted
C8306	Small cell B-cell lymphoma, intrapelvic lymph nodes	K	Accepted
C8307	Small cell B-cell lymphoma, spleen	K	Accepted
C8308	Small cell B-cell lymphoma, lymph nodes of multiple sites	K	Accepted
C8309	Small cell B-cell lymphoma, extranodal and solid organ sites	K	Accepted
C830A	Small cell B-cell lymphoma, in remission	K	Accepted
C8310	Mantle cell lymphoma, unspecified site	K	Accepted
C8311	Mantle cell lymphoma, lymph nodes of head, face, and neck	K	Accepted
C8312	Mantle cell lymphoma, intrathoracic lymph nodes	K	Accepted
C8313	Mantle cell lymphoma, intra-abdominal lymph nodes	K	Accepted
C8314	Mantle cell lymphoma, lymph nodes of axilla and upper limb	K	Accepted
C8315	Mantle cell lymphoma, nodes of ing region and lower limb	K	Accepted
C8316	Mantle cell lymphoma, intrapelvic lymph nodes	K	Accepted
C8317	Mantle cell lymphoma, spleen	K	Accepted
C8318	Mantle cell lymphoma, lymph nodes of multiple sites	K	Accepted
C8319	Mantle cell lymphoma, extranodal and solid organ sites	K	Accepted
C831A	Mantle cell lymphoma, in remission	K	Accepted
C8330	Diffuse large B-cell lymphoma, unspecified site	K	Accepted
C8331	Diffuse large B-cell lymphoma, nodes of head, face, and neck	K	Accepted
C8332	Diffuse large B-cell lymphoma, intrathoracic lymph nodes	K	Accepted
C8333	Diffuse large B-cell lymphoma, intra-abdominal lymph nodes	K	Accepted
C8334	Diffuse large B-cell lymph, nodes of axilla and upper limb	K	Accepted
C8335	Diffus large B-cell lymph, nodes of ing rgn and lower limb	K	Accepted
C8336	Diffuse large B-cell lymphoma, intrapelvic lymph nodes	K	Accepted
C8337	Diffuse large B-cell lymphoma, spleen	K	Accepted
C8338	Diffuse large B-cell lymphoma, lymph nodes of multiple sites	K	Accepted
C83390	Primary central nervous system lymphoma	K	Accepted
C83398	Diffuse large B-cell lymph of extrnod and solid organ sites	K	Accepted
C833A	Diffuse large B-cell lymphoma, in remission	K	Accepted
C8350	Lymphoblastic (diffuse) lymphoma, unspecified site	K	Accepted
C8351	Lymphoblastic lymphoma, nodes of head, face, and neck	K	Accepted
C8352	Lymphoblastic (diffuse) lymphoma, intrathoracic lymph nodes	K	Accepted
C8353	Lymphoblastic (diffuse) lymphoma, intra-abd lymph nodes	K	Accepted
C8354	Lymphoblastic lymphoma, nodes of axilla and upper limb	K	Accepted
C8355	Lymphoblastic lymphoma, nodes of ing region and lower limb	K	Accepted
C8356	Lymphoblastic (diffuse) lymphoma, intrapelvic lymph nodes	K	Accepted
C8357	Lymphoblastic (diffuse) lymphoma, spleen	K	Accepted
C8358	Lymphoblastic (diffuse) lymphoma, lymph nodes mult site	K	Accepted
C8359	Lymphoblastic lymphoma, extrnod and solid organ sites	K	Accepted
C835A	Lymphoblastic (diffuse) lymphoma, in remission	K	Accepted
C8370	Burkitt lymphoma, unspecified site	K	Accepted
C8371	Burkitt lymphoma, lymph nodes of head, face, and neck	K	Accepted
C8372	Burkitt lymphoma, intrathoracic lymph nodes	K	Accepted
C8373	Burkitt lymphoma, intra-abdominal lymph nodes	K	Accepted
C8374	Burkitt lymphoma, lymph nodes of axilla and upper limb	K	Accepted
C8375	Burkitt lymphoma, nodes of inguinal region and lower limb	K	Accepted
C8376	Burkitt lymphoma, intrapelvic lymph nodes	K	Accepted
C8377	Burkitt lymphoma, spleen	K	Accepted
C8378	Burkitt lymphoma, lymph nodes of multiple sites	K	Accepted
C8379	Burkitt lymphoma, extranodal and solid organ sites	K	Accepted
C837A	Burkitt lymphoma, in remission	K	Accepted
C8380	Other non-follicular lymphoma, unspecified site	K	Accepted
C8381	Oth non-follic lymphoma, lymph nodes of head, face, and neck	K	Accepted
C8382	Other non-follicular lymphoma, intrathoracic lymph nodes	K	Accepted
C8383	Other non-follicular lymphoma, intra-abdominal lymph nodes	K	Accepted
C8384	Oth non-follic lymphoma, nodes of axilla and upper limb	K	Accepted
C8385	Oth non-follic lymphoma, nodes of ing region and lower limb	K	Accepted
C8386	Other non-follicular lymphoma, intrapelvic lymph nodes	K	Accepted
C8387	Other non-follicular lymphoma, spleen	K	Accepted
C8388	Other non-follicular lymphoma, lymph nodes of multiple sites	K	Accepted
C8389	Oth non-follic lymphoma, extranodal and solid organ sites	K	Accepted
C838A	Other non-follicular lymphoma, in remission	K	Accepted
C8390	Non-follicular (diffuse) lymphoma, unsp, unspecified site	K	Accepted
C8391	Non-follic lymphoma, unsp, nodes of head, face, and neck	K	Accepted
C8392	Non-follic (diffuse) lymphoma, unsp, intrathorac lymph nodes	K	Accepted
C8393	Non-follic (diffuse) lymphoma, unsp, intra-abd lymph nodes	K	Accepted
C8394	Non-follic lymphoma, unsp, nodes of axilla and upper limb	K	Accepted
C8395	Non-follic lymph, unsp, nodes of ing region and lower limb	K	Accepted
C8396	Non-follic (diffuse) lymphoma, unsp, intrapelvic lymph nodes	K	Accepted
C8397	Non-follicular (diffuse) lymphoma, unspecified, spleen	K	Accepted
C8398	Non-follic (diffuse) lymphoma, unsp, lymph nodes mult site	K	Accepted
C8399	Non-follic lymphoma, unsp, extrnod and solid organ sites	K	Accepted
C839A	Non-follicular (diffuse) lymphoma, unspecified, in remission	K	Accepted
C8400	Mycosis fungoides, unspecified site	K	Accepted
C8401	Mycosis fungoides, lymph nodes of head, face, and neck	K	Accepted
C8402	Mycosis fungoides, intrathoracic lymph nodes	K	Accepted
C8403	Mycosis fungoides, intra-abdominal lymph nodes	K	Accepted
C8404	Mycosis fungoides, lymph nodes of axilla and upper limb	K	Accepted
C8405	Mycosis fungoides, nodes of inguinal region and lower limb	K	Accepted
C8406	Mycosis fungoides, intrapelvic lymph nodes	K	Accepted
C8407	Mycosis fungoides, spleen	K	Accepted
C8408	Mycosis fungoides, lymph nodes of multiple sites	K	Accepted
C8409	Mycosis fungoides, extranodal and solid organ sites	K	Accepted
C840A	Mycosis fungoides, in remission	K	Accepted
C8410	Sezary disease, unspecified site	K	Accepted
C8411	Sezary disease, lymph nodes of head, face, and neck	K	Accepted
C8412	Sezary disease, intrathoracic lymph nodes	K	Accepted
C8413	Sezary disease, intra-abdominal lymph nodes	K	Accepted
C8414	Sezary disease, lymph nodes of axilla and upper limb	K	Accepted
C8415	Sezary disease, nodes of inguinal region and lower limb	K	Accepted
C8416	Sezary disease, intrapelvic lymph nodes	K	Accepted
C8417	Sezary disease, spleen	K	Accepted
C8418	Sezary disease, lymph nodes of multiple sites	K	Accepted
C8419	Sezary disease, extranodal and solid organ sites	K	Accepted
C841A	Sezary disease, in remission	K	Accepted
C8440	Peripheral T-cell lymphoma, NEC, unspecified site	K	Accepted
C8441	Prph T-cell lymphoma, NEC, nodes of head, face, and neck	K	Accepted
C8442	Peripheral T-cell lymphoma, NEC, intrathoracic lymph nodes	K	Accepted
C8443	Peripheral T-cell lymphoma, NEC, intra-abdominal lymph nodes	K	Accepted
C8444	Prph T-cell lymphoma, NEC, nodes of axilla and upper limb	K	Accepted
C8445	Prph T-cell lymph, NEC, nodes of ing region and lower limb	K	Accepted
C8446	Peripheral T-cell lymphoma, NEC, intrapelvic lymph nodes	K	Accepted
C8447	Peripheral T-cell lymphoma, not elsewhere classified, spleen	K	Accepted
C8448	Peripheral T-cell lymphoma, NEC, lymph nodes mult site	K	Accepted
C8449	Prph T-cell lymphoma, NEC, extrnod and solid organ sites	K	Accepted
C844A	Peripheral T-cell lymphoma, NEC, in remission	K	Accepted
C8460	Anaplastic large cell lymphoma, ALK-positive, unsp site	K	Accepted
C8461	Anaplstc lg cell lymph, ALK-pos, nodes of head, face, and nk	K	Accepted
C8462	Anaplastic large cell lymphoma, ALK-pos, intrathorac nodes	K	Accepted
C8463	Anaplastic large cell lymphoma, ALK-pos, intra-abd nodes	K	Accepted
C8464	Anaplstc lg cell lymph, ALK-pos, nodes of axla and upr limb	K	Accepted
C8465	Anaplstc lg cell lymph, ALK-pos, nodes of ing rgn & low lmb	K	Accepted
C8466	Anaplastic large cell lymphoma, ALK-pos, intrapelv nodes	K	Accepted
C8467	Anaplastic large cell lymphoma, ALK-positive, spleen	K	Accepted
C8468	Anaplastic large cell lymphoma, ALK-pos, nodes mult site	K	Accepted
C8469	Anaplstc lg cell lymph, ALK-pos, extrnod and solid org sites	K	Accepted
C846A	Anaplastic large cell lymphoma, ALK-positive, in remission	K	Accepted
C8470	Anaplastic large cell lymphoma, ALK-negative, unsp site	K	Accepted
C8471	Anaplstc lg cell lymph, ALK-neg, nodes of head, face, and nk	K	Accepted
C8472	Anaplastic large cell lymphoma, ALK-neg, intrathorac nodes	K	Accepted
C8473	Anaplastic large cell lymphoma, ALK-neg, intra-abd nodes	K	Accepted
C8474	Anaplstc lg cell lymph, ALK-neg, nodes of axla and upr limb	K	Accepted
C8475	Anaplstc lg cell lymph, ALK-neg, nodes of ing rgn & low lmb	K	Accepted
C8476	Anaplastic large cell lymphoma, ALK-neg, intrapelv nodes	K	Accepted
C8477	Anaplastic large cell lymphoma, ALK-negative, spleen	K	Accepted
C8478	Anaplastic large cell lymphoma, ALK-neg, nodes mult site	K	Accepted
C8479	Anaplstc lg cell lymph, ALK-neg, extrnod and solid org sites	K	Accepted
C847A	Anaplastic large cell lymphoma, ALK-negative, breast	K	Accepted
C847B	Anaplastic large cell lymphoma, ALK-negative, in remission	K	Accepted
C8490	Mature T/NK-cell lymphomas, unspecified, unspecified site	K	Accepted
C8491	Mature T/NK-cell lymph, unsp, nodes of head, face, and neck	K	Accepted
C8492	Mature T/NK-cell lymphomas, unsp, intrathoracic lymph nodes	K	Accepted
C8493	Mature T/NK-cell lymphomas, unsp, intra-abd lymph nodes	K	Accepted
C8494	Mature T/NK-cell lymph, unsp, nodes of axilla and upper limb	K	Accepted
C8495	Mature T/NK-cell lymph, unsp, nodes of ing rgn and low limb	K	Accepted
C8496	Mature T/NK-cell lymphomas, unsp, intrapelvic lymph nodes	K	Accepted
C8497	Mature T/NK-cell lymphomas, unspecified, spleen	K	Accepted
C8498	Mature T/NK-cell lymphomas, unsp, lymph nodes mult site	K	Accepted
C8499	Mature T/NK-cell lymph, unsp, extrnod and solid organ sites	K	Accepted
C849A	Mature T/NK-cell lymphomas, unspecified, in remission	K	Accepted
C84A0	Cutaneous T-cell lymphoma, unspecified, unspecified site	K	Accepted
C84A1	Cutan T-cell lymphoma, unsp nodes of head, face, and neck	K	Accepted
C84A2	Cutaneous T-cell lymphoma, unsp, intrathoracic lymph nodes	K	Accepted
C84A3	Cutaneous T-cell lymphoma, unsp, intra-abdominal lymph nodes	K	Accepted
C84A4	Cutan T-cell lymphoma, unsp, nodes of axilla and upper limb	K	Accepted
C84A5	Cutan T-cell lymph, unsp, nodes of ing region and lower limb	K	Accepted
C84A6	Cutaneous T-cell lymphoma, unsp, intrapelvic lymph nodes	K	Accepted
C84A7	Cutaneous T-cell lymphoma, unspecified, spleen	K	Accepted
C84A8	Cutaneous T-cell lymphoma, unsp, lymph nodes mult site	K	Accepted
C84A9	Cutan T-cell lymphoma, unsp, extrnod and solid organ sites	K	Accepted
C84AA	Cutaneous T-cell lymphoma, unspecified, in remission	K	Accepted
C84Z0	Other mature T/NK-cell lymphomas, unspecified site	K	Accepted
C84Z1	Oth mature T/NK-cell lymph, nodes of head, face, and neck	K	Accepted
C84Z2	Other mature T/NK-cell lymphomas, intrathoracic lymph nodes	K	Accepted
C84Z3	Oth mature T/NK-cell lymphomas, intra-abdominal lymph nodes	K	Accepted
C84Z4	Oth mature T/NK-cell lymph, nodes of axilla and upper limb	K	Accepted
C84Z5	Oth mature T/NK-cell lymph, nodes of ing rgn and lower limb	K	Accepted
C84Z6	Other mature T/NK-cell lymphomas, intrapelvic lymph nodes	K	Accepted
C84Z7	Other mature T/NK-cell lymphomas, spleen	K	Accepted
C84Z8	Oth mature T/NK-cell lymphomas, lymph nodes mult site	K	Accepted
C84Z9	Oth mature T/NK-cell lymph, extrnod and solid organ sites	K	Accepted
C84ZA	Other mature T/NK-cell lymphomas, in remission	K	Accepted
C8510	Unspecified B-cell lymphoma, unspecified site	K	Accepted
C8511	Unsp B-cell lymphoma, lymph nodes of head, face, and neck	K	Accepted
C8512	Unspecified B-cell lymphoma, intrathoracic lymph nodes	K	Accepted
C8513	Unspecified B-cell lymphoma, intra-abdominal lymph nodes	K	Accepted
C8514	Unsp B-cell lymphoma, lymph nodes of axilla and upper limb	K	Accepted
C8515	Unsp B-cell lymphoma, nodes of ing region and lower limb	K	Accepted
C8516	Unspecified B-cell lymphoma, intrapelvic lymph nodes	K	Accepted
C8517	Unspecified B-cell lymphoma, spleen	K	Accepted
C8518	Unspecified B-cell lymphoma, lymph nodes of multiple sites	K	Accepted
C8519	Unsp B-cell lymphoma, extranodal and solid organ sites	K	Accepted
C851A	Unspecified B-cell lymphoma, in remission	K	Accepted
C8520	Mediastinal (thymic) large B-cell lymphoma, unspecified site	K	Accepted
C8521	Mediastnl large B-cell lymph, nodes of head, face, and neck	K	Accepted
C8522	Mediastnl (thymic) large B-cell lymphoma, intrathorac nodes	K	Accepted
C8523	Mediastinal (thymic) large B-cell lymphoma, intra-abd nodes	K	Accepted
C8524	Mediastnl large B-cell lymph, nodes of axilla and upper limb	K	Accepted
C8525	Mediastnl lg B-cell lymph, nodes of ing rgn and lower limb	K	Accepted
C8526	Mediastinal (thymic) large B-cell lymphoma, intrapelv nodes	K	Accepted
C8527	Mediastinal (thymic) large B-cell lymphoma, spleen	K	Accepted
C8528	Mediastinal (thymic) large B-cell lymphoma, nodes mult site	K	Accepted
C8529	Mediastnl large B-cell lymph, extrnod and solid organ sites	K	Accepted
C852A	Mediastinal (thymic) large B-cell lymphoma, in remission	K	Accepted
C8580	Oth types of non-Hodgkin lymphoma, unspecified site	K	Accepted
C8581	Oth types of non-hodg lymph, nodes of head, face, and neck	K	Accepted
C8582	Oth types of non-Hodgkin lymphoma, intrathoracic lymph nodes	K	Accepted
C8583	Oth types of non-Hodgkin lymphoma, intra-abd lymph nodes	K	Accepted
C8584	Oth types of non-hodg lymph, nodes of axilla and upper limb	K	Accepted
C8585	Oth types of non-hodg lymph, nodes of ing rgn and lower limb	K	Accepted
C8586	Oth types of non-Hodgkin lymphoma, intrapelvic lymph nodes	K	Accepted
C8587	Other specified types of non-Hodgkin lymphoma, spleen	K	Accepted
C8588	Oth types of non-Hodgkin lymphoma, lymph nodes mult site	K	Accepted
C8589	Oth types of non-hodg lymph, extrnod and solid organ sites	K	Accepted
C858A	Other specified types of non-Hodgkin lymphoma, in remission	K	Accepted
C8590	Non-Hodgkin lymphoma, unspecified, unspecified site	K	Accepted
C8591	Non-Hodgkin lymphoma, unsp, nodes of head, face, and neck	K	Accepted
C8592	Non-Hodgkin lymphoma, unspecified, intrathoracic lymph nodes	K	Accepted
C8593	Non-Hodgkin lymphoma, unsp, intra-abdominal lymph nodes	K	Accepted
C8594	Non-Hodgkin lymphoma, unsp, nodes of axilla and upper limb	K	Accepted
C8595	Non-hodg lymphoma, unsp, nodes of ing region and lower limb	K	Accepted
C8596	Non-Hodgkin lymphoma, unspecified, intrapelvic lymph nodes	K	Accepted
C8597	Non-Hodgkin lymphoma, unspecified, spleen	K	Accepted
C8598	Non-Hodgkin lymphoma, unsp, lymph nodes of multiple sites	K	Accepted
C8599	Non-Hodgkin lymphoma, unsp, extranodal and solid organ sites	K	Accepted
C859A	Non-Hodgkin lymphoma, unspecified, in remission	K	Accepted
C8600	Extranodal NK/T-cell lymphoma, nasal type not remission	K	Accepted
C8601	Extranodal NK/T-cell lymphoma, nasal type, in remission	K	Accepted
C8610	Hepatosplenic T-cell lymphoma not having achieved remission	K	Accepted
C8611	Hepatosplenic T-cell lymphoma, in remission	K	Accepted
C8620	Enteropathy-type (intestinal) T-cell lymphoma not remission	K	Accepted
C8621	Enteropathy-type (intestinal) T-cell lymphoma, in remission	K	Accepted
C8630	Subcutaneous panniculitis-like T-cell lymphoma not remission	K	Accepted
C8631	Subcutaneous panniculitis-like T-cell lymphoma, in remission	K	Accepted
C8640	Blastic NK-cell lymphoma not having achieved remission	K	Accepted
C8641	Blastic NK-cell lymphoma, in remission	K	Accepted
C8650	Angioimmunoblastic T-cell lymphoma not achieve remission	K	Accepted
C8651	Angioimmunoblastic T-cell lymphoma, in remission	K	Accepted
C8660	Primary cutaneous CD30-positive T-cell prolif not remission	K	Accepted
C8661	Primary cutaneous CD30-positive T-cell prolif, in remission	K	Accepted
C8800	Waldenstrom macroglobulinemia not having achieved remission	K	Accepted
C8801	Waldenstrom macroglobulinemia, in remission	K	Accepted
C8820	Heavy chain disease not having achieved remission	K	Accepted
C8821	Heavy chain disease, in remission	K	Accepted
C8830	Immunoproliferative small intestinal disease not remission	K	Accepted
C8831	Immunoproliferative small intestinal disease, in remission	K	Accepted
C8840	Extrnod mrgnl B-cell lymph mucosa-assoc lym tiss not remis	K	Accepted
C8841	Extrnod mrgnl B-cell lymph mucosa-assoc lym tiss, in remis	K	Accepted
C8880	Other malignant immunoproliferative diseases not remission	K	Accepted
C8881	Other malignant immunoproliferative diseases, in remission	K	Accepted
C8890	Malignant immunoproliferative disease, unsp not remission	K	Accepted
C8891	Malignant immunoproliferative disease, unsp, in remission	K	Accepted
C9000	Multiple myeloma not having achieved remission	K	Accepted
C9001	Multiple myeloma in remission	K	Accepted
C9002	Multiple myeloma in relapse	K	Accepted
C9010	Plasma cell leukemia not having achieved remission	K	Accepted
C9011	Plasma cell leukemia in remission	K	Accepted
C9012	Plasma cell leukemia in relapse	K	Accepted
C9020	Extramedullary plasmacytoma not having achieved remission	K	Accepted
C9021	Extramedullary plasmacytoma in remission	K	Accepted
C9022	Extramedullary plasmacytoma in relapse	K	Accepted
C9030	Solitary plasmacytoma not having achieved remission	K	Accepted
C9031	Solitary plasmacytoma in remission	K	Accepted
C9032	Solitary plasmacytoma in relapse	K	Accepted
C9100	Acute lymphoblastic leukemia not having achieved remission	K	Accepted
C9101	Acute lymphoblastic leukemia, in remission	K	Accepted
C9102	Acute lymphoblastic leukemia, in relapse	K	Accepted
C9110	Chronic lymphocytic leuk of B-cell type not achieve remis	K	Accepted
C9111	Chronic lymphocytic leukemia of B-cell type in remission	K	Accepted
C9112	Chronic lymphocytic leukemia of B-cell type in relapse	K	Accepted
C9130	Prolymphocytic leukemia of B-cell type not achieve remission	K	Accepted
C9131	Prolymphocytic leukemia of B-cell type, in remission	K	Accepted
C9132	Prolymphocytic leukemia of B-cell type, in relapse	K	Accepted
C9140	Hairy cell leukemia not having achieved remission	K	Accepted
C9141	Hairy cell leukemia, in remission	K	Accepted
C9142	Hairy cell leukemia, in relapse	K	Accepted
C9150	Adult T-cell lymph/leuk (HTLV-1-assoc) not achieve remission	K	Accepted
C9151	Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in remission	K	Accepted
C9152	Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in relapse	K	Accepted
C9160	Prolymphocytic leukemia of T-cell type not achieve remission	K	Accepted
C9161	Prolymphocytic leukemia of T-cell type, in remission	K	Accepted
C9162	Prolymphocytic leukemia of T-cell type, in relapse	K	Accepted
C9190	Lymphoid leukemia, unspecified not having achieved remission	K	Accepted
C9191	Lymphoid leukemia, unspecified, in remission	K	Accepted
C9192	Lymphoid leukemia, unspecified, in relapse	K	Accepted
C91A0	Mature B-cell leukemia Burkitt-type not achieve remission	K	Accepted
C91A1	Mature B-cell leukemia Burkitt-type, in remission	K	Accepted
C91A2	Mature B-cell leukemia Burkitt-type, in relapse	K	Accepted
C91Z0	Other lymphoid leukemia not having achieved remission	K	Accepted
C91Z1	Other lymphoid leukemia, in remission	K	Accepted
C91Z2	Other lymphoid leukemia, in relapse	K	Accepted
C9200	Acute myeloblastic leukemia, not having achieved remission	K	Accepted
C9201	Acute myeloblastic leukemia, in remission	K	Accepted
C9202	Acute myeloblastic leukemia, in relapse	K	Accepted
C9210	Chronic myeloid leuk, BCR/ABL-positive, not achieve remis	K	Accepted
C9211	Chronic myeloid leukemia, BCR/ABL-positive, in remission	K	Accepted
C9212	Chronic myeloid leukemia, BCR/ABL-positive, in relapse	K	Accepted
C9220	Atyp chronic myeloid leuk, BCR/ABL-neg, not achieve remis	K	Accepted
C9221	Atypical chronic myeloid leukemia, BCR/ABL-neg, in remission	K	Accepted
C9222	Atypical chronic myeloid leukemia, BCR/ABL-neg, in relapse	K	Accepted
C9230	Myeloid sarcoma, not having achieved remission	K	Accepted
C9231	Myeloid sarcoma, in remission	K	Accepted
C9232	Myeloid sarcoma, in relapse	K	Accepted
C9240	Acute promyelocytic leukemia, not having achieved remission	K	Accepted
C9241	Acute promyelocytic leukemia, in remission	K	Accepted
C9242	Acute promyelocytic leukemia, in relapse	K	Accepted
C9250	Acute myelomonocytic leukemia, not having achieved remission	K	Accepted
C9251	Acute myelomonocytic leukemia, in remission	K	Accepted
C9252	Acute myelomonocytic leukemia, in relapse	K	Accepted
C9260	Acute myeloid leukemia w 11q23-abnormality not achieve remis	K	Accepted
C9261	Acute myeloid leukemia with 11q23-abnormality in remission	K	Accepted
C9262	Acute myeloid leukemia with 11q23-abnormality in relapse	K	Accepted
C9290	Myeloid leukemia, unspecified, not having achieved remission	K	Accepted
C9291	Myeloid leukemia, unspecified in remission	K	Accepted
C9292	Myeloid leukemia, unspecified in relapse	K	Accepted
C92A0	Acute myeloid leuk w multilin dysplasia, not achieve remis	K	Accepted
C92A1	Acute myeloid leukemia w multilin dysplasia, in remission	K	Accepted
C92A2	Acute myeloid leukemia w multilineage dysplasia, in relapse	K	Accepted
C92Z0	Other myeloid leukemia not having achieved remission	K	Accepted
C92Z1	Other myeloid leukemia, in remission	K	Accepted
C92Z2	Other myeloid leukemia, in relapse	K	Accepted
C9300	Acute monoblastic/monocytic leukemia, not achieve remission	K	Accepted
C9301	Acute monoblastic/monocytic leukemia, in remission	K	Accepted
C9302	Acute monoblastic/monocytic leukemia, in relapse	K	Accepted
C9310	Chronic myelomonocytic leukemia not achieve remission	K	Accepted
C9311	Chronic myelomonocytic leukemia, in remission	K	Accepted
C9312	Chronic myelomonocytic leukemia, in relapse	K	Accepted
C9330	Juvenile myelomonocytic leukemia, not achieve remission	K	Accepted
C9331	Juvenile myelomonocytic leukemia, in remission	K	Accepted
C9332	Juvenile myelomonocytic leukemia, in relapse	K	Accepted
C9390	Monocytic leukemia, unsp, not having achieved remission	K	Accepted
C9391	Monocytic leukemia, unspecified in remission	K	Accepted
C9392	Monocytic leukemia, unspecified in relapse	K	Accepted
C93Z0	Other monocytic leukemia, not having achieved remission	K	Accepted
C93Z1	Other monocytic leukemia, in remission	K	Accepted
C93Z2	Other monocytic leukemia, in relapse	K	Accepted
C9400	Acute erythroid leukemia, not having achieved remission	K	Accepted
C9401	Acute erythroid leukemia, in remission	K	Accepted
C9402	Acute erythroid leukemia, in relapse	K	Accepted
C9420	Acute megakaryoblastic leukemia not achieve remission	K	Accepted
C9421	Acute megakaryoblastic leukemia, in remission	K	Accepted
C9422	Acute megakaryoblastic leukemia, in relapse	K	Accepted
C9430	Mast cell leukemia not having achieved remission	K	Accepted
C9431	Mast cell leukemia, in remission	K	Accepted
C9432	Mast cell leukemia, in relapse	K	Accepted
C9440	Acute panmyelosis w myelofibrosis not achieve remission	K	Accepted
C9441	Acute panmyelosis with myelofibrosis, in remission	K	Accepted
C9442	Acute panmyelosis with myelofibrosis, in relapse	K	Accepted
C946	Myelodysplastic disease, not elsewhere classified	K	Accepted
C9480	Other specified leukemias not having achieved remission	K	Accepted
C9481	Other specified leukemias, in remission	K	Accepted
C9482	Other specified leukemias, in relapse	K	Accepted
C9500	Acute leukemia of unsp cell type not achieve remission	K	Accepted
C9501	Acute leukemia of unspecified cell type, in remission	K	Accepted
C9502	Acute leukemia of unspecified cell type, in relapse	K	Accepted
C9510	Chronic leukemia of unsp cell type not achieve remission	K	Accepted
C9511	Chronic leukemia of unspecified cell type, in remission	K	Accepted
C9512	Chronic leukemia of unspecified cell type, in relapse	K	Accepted
C9590	Leukemia, unspecified not having achieved remission	K	Accepted
C9591	Leukemia, unspecified, in remission	K	Accepted
C9592	Leukemia, unspecified, in relapse	K	Accepted
C960	Multifocal and multisystemic Langerhans-cell histiocytosis	K	Accepted
C9620	Malignant mast cell neoplasm, unspecified	K	Accepted
C9621	Aggressive systemic mastocytosis	K	Accepted
C9622	Mast cell sarcoma	K	Accepted
C9629	Other malignant mast cell neoplasm	K	Accepted
C964	Sarcoma of dendritic cells (accessory cells)	K	Accepted
C965	Multifocal and unisystemic Langerhans-cell histiocytosis	K	Accepted
C966	Unifocal Langerhans-cell histiocytosis	K	Accepted
C969	Malig neoplm of lymphoid, hematpoetc and rel tissue, unsp	K	Accepted
C96A	Histiocytic sarcoma	K	Accepted
C96Z	Oth malig neoplm of lymphoid, hematpoetc and related tissue	K	Accepted

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.

What CMS changed, what's due next, and what to do about it — one email a month, no fluff.

C81-C96 — Malignant neoplasms of lymphoid, hematopoietic and related tissue

Where these codes group

Every code in C81-C96

The monthly home health regs digest