2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of Blood And Blood-Forming Organs 280-289 > Other Deficiency Anemias 281.* > 2006 ICD-9-CM Diagnosis 281.9 Unspecified deficiency anemia View the most recent version of ICD-9-CM 281.9 A disorder characterized by the presence of ANEMIA, abnormally large red blood cells (megalocytes or macrocytes), and MEGALOBLASTS. Anemia characterized by larger than normal erythrocytes, increased mean corpuscular volume (MCV) and increased mean corpuscular hemoglobin (MCH). 281.9 is a specific code that can be used to specify a diagnosis 281.9 contains 11 index entries View the ICD-9-CM Volume 1 281.* hierarchy Alternate Terminology Anemia: dimorphic macrocytic megaloblastic NOS nutritional NOS simple chronic  Index entries containing 281.9: Anemia 285.9 chronic simple 281.9 deficiency 281.9 2, 3 diphosphoglycurate mutase 282.3 2, 3 PG 282.3 6-PGD 282.2 6-phosphogluronic dehydrogenase 282.2 amino acid 281.4 combined B12 and folate 281.3 enzyme, drug-induced (hemolytic) 282.2 erythrocytic glutathione 282.2 folate 281.2 dietary 281.2 drug-induced 281.2 folic acid 281.2 dietary 281.2 drug-induced 281.2 G-6-PD 282.2 GGS-R 282.2 glucose-6-phosphate dehydrogenase (G-6-PD) 282.2 glucose-phosphate isomerase 282.3 glutathione peroxidase 282.2 glutathione reductase 282.2 glyceraldehyde phosphate dehydrogenase 282.3 GPI 282.3 G SH 282.2 hexokinase 282.3 iron (Fe) 280.9 specified NEC 280.8 nutritional 281.9 with poor iron absorption 280.9 specified deficiency NEC 281.8 due to inadequate dietary iron intake 280.1 specified type NEC 281.8 of or complicating pregnancy 648.2 pentose phosphate pathway 282.2 PFK 282.3 phosphofructo-aldolase 282.3 phosphofructokinase 282.3 phosphoglycerate kinase 282.3 PK 282.3 protein 281.4 pyruvate kinase (PK) 282.3 TPI 282.3 triosephosphate isomerase 282.3 vitamin B12 NEC 281.1 dietary 281.1 pernicious 281.0 dimorphic 281.9 macrocytic 281.9 nutritional 281.2 of or complicating pregnancy 648.2 tropical 281.2 malnutrition 281.9 megaloblastic 281.9 combined B12 and folate deficiency 281.3 nutritional (of infancy) 281.2 of infancy 281.2 of or complicating pregnancy 648.2 refractory 281.3 specified NEC 281.3 megalocytic 281.9 nutritional (deficiency) 281.9 with poor iron absorption 280.9 specified deficiency NEC 281.8 due to inadequate dietary iron intake 280.1 megaloblastic (of infancy) 281.2 simple chronic 281.9 Megalocytic anemia 281.9