2025 ICD-10-CM Diagnosis Code C88.4

by

Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue [MALT-lymphoma]

  • C88.4 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • Short description: Extrnod mrgnl zn B-cell lymph of mucosa-assoc lymphoid tiss
  • ICD-10-CM C88.4 is a new 2025 ICD-10-CM code that became effective on October 1, 2024.
  • This is the American ICD-10-CM version of C88.4 – other international versions of ICD-10 C88.4 may differ.

Applicable To

  • Lymphoma of skin-associated lymphoid tissue [SALT-lymphoma]
  • Lymphoma of bronchial-associated lymphoid tissue [BALT-lymphoma]

Type 1 Excludes

  • high malignant (diffuse large B-cell) lymphoma (C83.3-)

The following code(s) above C88.4 contain annotation back-references

 that may be applicable to C88.4:

  • C00-D49  Neoplasms
  • C81-C96  Malignant neoplasms of lymphoid, hematopoietic and related tissue
  • C88  Malignant immunoproliferative diseases and certain other B-cell lymphomas

Approximate Synonyms

  • Extranodal marginal zone b-cell lymphoma of mucosa-associated lymphoid tissue (malt-lymphoma)
  • Lymphoma extranod marg zone b-cell mucosal lymph

Code History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): Deleted code
  • 2025 (effective 10/1/2024): New code

Diagnosis Index entries containing back-references to C88.4:

  • Lymphoma (of) (malignant) C85.90
    • BALT C88.4-
    • bronchial-associated lymphoid tissue [BALT-lymphoma] C88.4-
    • extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue [MALT-lymphoma] C88.4-
    • MALT C88.4-
    • mucosa-associated lymphoid tissue [MALT-lymphoma] C88.4-
    • SALT C88.4-
    • skin-associated lymphoid tissue [SALT-lymphoma] C88.4-
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