|  D75 |  | Other and unspecified diseases of blood and blood-forming organs   | 
	
		|  |  | 
	
		| Excludes2 | acute lymphadenitis (L04.-) chronic lymphadenitis (I88.1)
 enlarged lymph nodes (R59.-)
 hypergammaglobulinemia NOS (D89.2)
 lymphadenitis NOS (I88.9)
 mesenteric lymphadenitis (acute) (chronic) (I88.0)
 
 |  | 
|  |  | 
	
		|  D75.0 |  | Familial erythrocytosis |  
		|  |  | 
| Benign polycythemia |  | Familial polycythemia |  
		| Excludes1 | hereditary ovalocytosis (D58.1) 
 |  |  | 
|  |  | 
	
		|  D75.1 |  | Secondary polycythemia |  
		|  |  | 
| Acquired polycythemia |  | Emotional polycythemia |  | Erythrocytosis NOS |  | Hypoxemic polycythemia |  | Nephrogenous polycythemia |  | Polycythemia due to erythropoietin |  | Polycythemia due to fall in plasma volume |  | Polycythemia due to high altitude |  | Polycythemia due to stress |  | Polycythemia NOS |  | Relative polycythemia |  
		| Excludes1 | polycythemia neonatorum (P61.1) polycythemia vera (D45)
 
 |  |  | 
|  |  | 
	
		|  D75.8 |  | Other specified diseases of blood and blood-forming organs |  |  |  | 
	
		|  D75.81 |  | Myelofibrosis |  
		|  |  | 
| Myelofibrosis NOS |  | Secondary myelofibrosis NOS |  
		| CodeFirst | the underlying disorder, such as: malignant neoplasm of breast (C50.-)
 
 |  
		| UseAdditionalCode | code, if applicable, for associated therapy-related myelodysplastic syndrome (D46.-) 
 |  
		| UseAdditionalCode | code for adverse effect, if applicable, to identify drug (T45.1X5) 
 |  
		| Excludes1 | acute myelofibrosis (C94.4-) idiopathic myelofibrosis (D47.1)
 leukoerythroblastic anemia (D61.82)
 myelofibrosis with myeloid metaplasia (D47.4)
 myelophthisic anemia (D61.82)
 myelophthisis (D61.82)
 primary myelofibrosis (D47.1)
 
 |  
		| nonPrimary | Yes 
 |  |  |  |  |  | 
	
		|  D75.82 |  | Heparin induced thrombocytopenia (HIT) |  
		|  |  | 
	
		| UseAdditionalCode | code, if applicable, for adverse effect of heparin (T45.515-) 
 |  |  |  |  | 
	
		|  D75.821 |  | Non-immune heparin-induced thrombocytopenia |  
		|  |  | 
| Non-immune HIT |  | Type 1 heparin-induced thrombocytopenia |  |  |  |  |  | 
	
		|  D75.822 |  | Immune-mediated heparin-induced thrombocytopenia |  
		|  |  | 
| Immune-mediated HIT |  | Type 2 heparin-induced thrombocytopenia |  |  |  |  |  | 
	
		|  D75.828 |  | Other heparin-induced thrombocytopenia syndrome |  
		|  |  | 
| Autoimmune heparin-induced thrombocytopenia syndrome |  | Delayed-onset heparin-induced thrombocytopenia |  | Persisting heparin-induced thrombocytopenia |  |  |  |  |  | 
	
		|  D75.829 |  | Heparin-induced thrombocytopenia, unspecified |  |  |  |  |  | 
	
		|  D75.83 |  | Thrombocytosis |  
		|  |  | 
	
		| Excludes2 | essential thrombocythemia (D47.3) 
 |  |  |  |  | 
	
		|  D75.838 |  | Other thrombocytosis |  
		|  |  | 
| Reactive thrombocytosis |  | Secondary thrombocytosis |  
		| CodeAlso | underlying condition, if known and applicable 
 |  |  |  |  |  | 
	
		|  D75.839 |  | Thrombocytosis, unspecified |  
		|  |  | 
| Thrombocythemia NOS |  | Thrombocytosis NOS |  |  |  |  |  |  | 
	
		|  D75.84 |  | Other platelet-activating anti-PF4 disorders |  
		|  |  | 
| Spontaneous heparin-induced thrombocytopenia syndrome (without heparin exposure) |  | Thrombosis with thrombocytopenia syndrome |  | Vaccine-induced thrombotic thrombocytopenia |  
		| UseAdditionalCode | code, if applicable, for adverse effect of other viral vaccine (T50.B95-) 
 |  |  |  |  |  | 
	
		|  D75.89 |  | Other specified diseases of blood and blood-forming organs |  |  | 
|  |  | 
	
		|  D75.9 |  | Disease of blood and blood-forming organs, unspecified |  | 
|  |  | 
	
		|  D75.A |  | Glucose-6-phosphate dehydrogenase (G6PD) deficiency without anemia |  
		|  |  | 
	
		| Excludes1 | glucose-6-phosphate dehydrogenase (G6PD) deficiency with anemia (D55.0) 
 |  |  |