C84.11 is the authoritative medical code for Sézary disease, lymph nodes of head, face, and neck. This classification is used in medical billing and clinical recording to specify the clinical criteria for sézary disease, lymph nodes of head, face, and neck (ICD-10-CM C84.11), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Sézary disease, lymph nodes of head, face, and neck is a billable ICD-10-CM diagnosis code C84.11. Excludes1 (not coded here): personal history of non-Hodgkin lymphoma Z85.72. Excludes2 (not included here): Kaposi's sarcoma of lymph nodes C46.3; secondary and unspecified neoplasm of lymph nodes C77.-; secondary neoplasm of bone marrow C79.52; secondary neoplasm of spleen C78.89.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for C84.11 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- personal history of non-Hodgkin lymphoma Z85.72
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- Kaposi's sarcoma of lymph nodes C46.3
- secondary and unspecified neoplasm of lymph nodes C77.-
- secondary neoplasm of bone marrow C79.52
- secondary neoplasm of spleen C78.89
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with C84.11?
Per Excludes1 instructions, C84.11 must not be reported with: personal history of non-Hodgkin lymphoma (Z85.72).
Can C84.11 be reported alongside related conditions?
Per Excludes2 instructions, C84.11 and the following may both be reported when both are present: Kaposi's sarcoma of lymph nodes (C46.3); secondary and unspecified neoplasm of lymph nodes (C77.-); secondary neoplasm of bone marrow (C79.52); secondary neoplasm of spleen (C78.89).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as C84.11, with their registry titles.
- C84 — Mature T/NK-cell lymphomas
- C84.0 — Mycosis fungoides
- C84.00 — Mycosis fungoides, unspecified site
- C84.01 — Mycosis fungoides, lymph nodes of head, face, and neck
- C84.02 — Mycosis fungoides, intrathoracic lymph nodes
- C84.03 — Mycosis fungoides, intra-abdominal lymph nodes
- C84.04 — Mycosis fungoides, lymph nodes of axilla and upper limb
- C84.05 — Mycosis fungoides, lymph nodes of inguinal region and lower limb
- C84.06 — Mycosis fungoides, intrapelvic lymph nodes
- C84.07 — Mycosis fungoides, spleen
- C84.08 — Mycosis fungoides, lymph nodes of multiple sites
- C84.09 — Mycosis fungoides, extranodal and solid organ sites
- C84.0A — Mycosis fungoides, in remission
- C84.1 — Sézary disease
- C84.10 — Sézary disease, unspecified site
- C84.12 — Sézary disease, intrathoracic lymph nodes
- C84.13 — Sézary disease, intra-abdominal lymph nodes
- C84.14 — Sézary disease, lymph nodes of axilla and upper limb
- C84.15 — Sézary disease, lymph nodes of inguinal region and lower limb
- C84.16 — Sézary disease, intrapelvic lymph nodes
- C84.17 — Sézary disease, spleen
- C84.18 — Sézary disease, lymph nodes of multiple sites
- C84.19 — Sézary disease, extranodal and solid organ sites
- C84.1A — Sézary disease, in remission
- C84.4 — Peripheral T-cell lymphoma, not elsewhere classified
- C84.40 — Peripheral T-cell lymphoma, not elsewhere classified, unspecified site
- C84.41 — Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of head, face, and neck
- C84.42 — Peripheral T-cell lymphoma, not elsewhere classified, intrathoracic lymph nodes
- C84.43 — Peripheral T-cell lymphoma, not elsewhere classified, intra-abdominal lymph nodes
- C84.44 — Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of axilla and upper limb
- C84.45 — Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of inguinal region and lower limb
- C84.46 — Peripheral T-cell lymphoma, not elsewhere classified, intrapelvic lymph nodes
- C84.47 — Peripheral T-cell lymphoma, not elsewhere classified, spleen
- C84.48 — Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of multiple sites
- C84.49 — Peripheral T-cell lymphoma, not elsewhere classified, extranodal and solid organ sites
- C84.4A — Peripheral T-cell lymphoma, not elsewhere classified, in remission
- C84.6 — Anaplastic large cell lymphoma, ALK-positive
- C84.60 — Anaplastic large cell lymphoma, ALK-positive, unspecified site
- C84.61 — Anaplastic large cell lymphoma, ALK-positive, lymph nodes of head, face, and neck
- C84.62 — Anaplastic large cell lymphoma, ALK-positive, intrathoracic lymph nodes
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code C81.11
Nodular sclerosis Hodgkin lymphoma, lymph nodes of head, face, and neck
ICD Code C82.11
Follicular lymphoma grade II, lymph nodes of head, face, and neck
ICD Code C85.11
Unspecified B-cell lymphoma, lymph nodes of head, face, and neck