Code Also Notes in Chapter 2: Neoplasms ICD-10-CM
A Code Also note means two codes may be needed to fully describe a condition; it gives no sequencing direction. In Chapter 2 (C00-D49), notes printed in the chapter name other codes 20 times, and Code Also Notes anywhere in the Tabular List name the chapter’s codes 25 times, covering 21 distinct codes, categories and ranges. Switch views to read the list either way.
Code Also Notes by the code that carries the note
- if applicable exocrine pancreatic insufficiency (K86.81)
- C78.89 Secondary malignant neoplasm of other digestive organs
- exocrine pancreatic insufficiency (K86.81)
- any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)
- , if applicable, pancytopenia (acquired) (D61.818)
- , if applicable, eosinophilia (D72.18)
- , if applicable, eosinophilia (D72.18)
- D13.91 Familial adenomatous polyposis
- any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)
- D47.02 Systemic mastocytosis
- D47.Z2 Castleman disease
- , if applicable, human herpesvirus 8 infection (B10.89)
- C00.0-C96.9 Malignant neoplasm of external upper lip to Malignant neoplasm of lymphoid, hematopoietic and related tissue, unspecified 1,227 codes
- QA1 Genetic disorders associated with neoplasms, not elsewhere classified: malignant neoplasms (C00.0-C96.9)
- C00-C96 Malignant neoplasm of lip to Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissue 1,229 codes
- D59.39 Other hemolytic-uremic syndrome: malignant neoplasm (C00-C96)
- D13.91 Familial adenomatous polyposis: malignant neoplasm of colon (C18.-)
- E27.5 Adrenomedullary hyperfunction: malignant pheochromocytoma (C74.1-)
- E34.0 Carcinoid syndrome: primary neuroendocrine tumors (C7A.-)
- E34.0 Carcinoid syndrome: secondary neuroendocrine tumors (C7B.-)
- C82-C85 Follicular lymphoma to Other specified and unspecified types of non-Hodgkin lymphoma 310 codes
- D47.02 Systemic mastocytosis: non-Hodgkin lymphoma (C82-C85)
- D47.02 Systemic mastocytosis: plasma cell myeloma (C90.0-)
- D61.02 Shwachman-Diamond syndrome: acute myeloblastic leukemia (C92.0-)
- C92.10-C92.22 Chronic myeloid leukemia, BCR/ABL-positive, not having achieved remission to Atypical chronic myeloid leukemia, BCR/ABL-negative, in relapse 6 codes
- I27.29 Other secondary pulmonary hypertension: chronic myeloid leukemia (C92.10-C92.22)
- D47.02 Systemic mastocytosis: acute myeloid leukemia (C92.6-, C92.A-)
- D47.02 Systemic mastocytosis: acute myeloid leukemia (C92.6-, C92.A-)
- D47.02 Systemic mastocytosis: chronic myelomonocytic leukemia (C93.1-)
- D12.6 Benign neoplasm of colon, unspecified
- D13.91 Familial adenomatous polyposis: benign neoplasm of colon (D12.6)
- D45 Polycythemia vera
- D46.9 Myelodysplastic syndrome, unspecified
- D47.02 Systemic mastocytosis: myelodysplastic syndrome (D46.9)
- D61.02 Shwachman-Diamond syndrome: myelodysplastic syndrome (D46.-)
- D47.1 Chronic myeloproliferative disease
- D47.02 Systemic mastocytosis: myeloproliferative syndrome (D47.1)
- D47.3 Essential (hemorrhagic) thrombocythemia
The first view lists notes printed in this chapter (a note on a category or block applies to every code beneath it). The second lists codes of this chapter named by Code Also Notes anywhere in the Tabular List, including notes in other chapters.
Questions About Code Also Notes
What does a Code Also note mean?
A Code Also note instructs that two codes may be required to fully describe a condition, but it does not give sequencing direction (Section I.A.17). The FY 2027 Tabular List has 689 of them; 495 name other codes, with 538 references to 349 distinct codes, categories and ranges.
Which code goes first with a Code Also note?
The note does not decide it. Sequencing depends on the circumstances of the encounter: normally the condition that is the main reason for the visit goes first.
Related References
Source: FY 2027 ICD-10-CM Tabular List (CMS and NCHS) and the ICD-10-CM Official Guidelines for Coding and Reporting FY 2027, Section I.A. ICD List is not affiliated with CMS or NCHS.
