Code Also Notes in Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism 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 3 (D50-D89), notes printed in the chapter name other codes 32 times, and Code Also Notes anywhere in the Tabular List name the chapter’s codes 9 times, covering 8 distinct codes, categories and ranges. Switch views to read the list either way.
Code Also Notes by the code that carries the note
- D57.03 Hb-SS disease with cerebral vascular involvement
- , if applicable, cerebral infarction (I63.-)
- D57.213 Sickle-cell/Hb-C disease with cerebral vascular involvement
- , if applicable, cerebral infarction (I63.-)
- D57.413 Sickle-cell thalassemia, unspecified, with cerebral vascular involvement
- , if applicable cerebral infarction (I63.-)
- D57.433 Sickle-cell thalassemia beta zero with cerebral vascular involvement
- , if applicable cerebral infarction (I63.-)
- D57.453 Sickle-cell thalassemia beta plus with cerebral vascular involvement
- , if applicable cerebral infarction (I63.-)
- D57.813 Other sickle-cell disorders with cerebral vascular involvement
- , if applicable: cerebral infarction (I63.-)
- D59.32 Hereditary hemolytic-uremic syndrome
- D59.39 Other hemolytic-uremic syndrome
- D61.02 Shwachman-Diamond syndrome
- D61.82 Myelophthisis
- D68.09 Other von Willebrand disease
- , if applicable, qualitative platelet defects (D69.1-)
- D81.32 Adenosine deaminase 2 deficiency
- D81.82 Activated Phosphoinositide 3-kinase Delta Syndrome [APDS]
- D84.822 Immunodeficiency due to external causes
- , if applicable, radiological procedure and radiotherapy (Y84.2)
- Z71.87 Encounter for pediatric-to-adult transition counseling: sickle-cell disorder (D57.-)
- D61.818 Other pancytopenia
- C92 Myeloid leukemia: , if applicable, pancytopenia (acquired) (D61.818)
- D68.09 Other von Willebrand disease: , if applicable, qualitative platelet defects (D69.1-)
- D72.18 Eosinophilia in diseases classified elsewhere
- D47.02 Systemic mastocytosis: hypereosinophilic syndrome (D72.1)
- D84.1 Defects in the complement system
- D59.32 Hereditary hemolytic-uremic syndrome: defects in the complement system (D84.1)
- I27.29 Other secondary pulmonary hypertension: sarcoidosis (D86.-)
- D89.811 Chronic graft-versus-host disease
- J44.81 Bronchiolitis obliterans and bronchiolitis obliterans syndrome: chronic graft-versus-host disease (D89.811)
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.
