Specific code 2014 ICD-9-CM Diagnosis Code 790.09
Other abnormality of red blood cells
  • Billable Code
  • Short description: Abnormal RBC NEC.
  • ICD-9-CM 790.09 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 790.09 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Abnormal erythrocyte production
  • Anisocytosis, red cells
  • Bite cells
  • Blister cells
  • Dacrocytosis
  • Decreased erythrocyte destruction
  • Dyserythropoiesis
  • Echinocytosis
  • Erythrocyte aggregation
  • Finding of red blood cell staining
  • Finding related to hemoglobin H inclusions
  • Hematocrit - PCV abnormal
  • Hereditary elliptocytosis with transient poikilocytosis
  • Hereditary pyropoikilocytosis
  • Howell Jolly bodies
  • Hypochromic red blood cells
  • Mean corpuscular hemoglobin - abnormal
  • Megaloblastic erythropoiesis
  • Microcytosis (small size) of red blood cell
  • Microcytosis of RBC
  • Microcytosis, red cells
  • Microspherocytes seen
  • Neocyte
  • Non-anemic red cell disorder
  • Pappenheimer bodies
  • Platelet count abnormal
  • Poikilocytosis
  • Puddle cells
  • Pyknocytosis
  • Red blood cell - red blood cell clumping
  • Red blood cell agglutination
  • Red blood cell count abnormal
  • Red blood cell enzymes abnormal
  • Red blood cell folate borderline low
  • Red blood cell inclusions
  • Red blood cell morphology abnormal
  • Red blood cell not clumping
  • Red blood cell volume outside reference range
  • Red blood cell: auto-agglutination
  • Red blood cells - megaloblasts
  • Reticulocyte count abnormal
  • Rhytiocytosis
  • Rouleaux
  • Schistocytosis
  • Sickling test positive
  • Sputnik cells
  • Whole blood folate borderline high
Clinical Information
  • A measurement of the inequality in the size of the red blood cells in a whole blood specimen.
  • A measurement of the odd-shaped erythrocytes in a whole blood specimen.
  • An increase in the number of abnormally shaped red blood cells.
  • The presence of erythrocytes with excessive variation in size in the blood.
Applies To
  • Abnormal red cell morphology NOS
  • Abnormal red cell volume NOS
  • Anisocytosis
  • Poikilocytosis
Convert to ICD-10-CM: 790.09 converts directly to:
  • 2014 ICD-10-CM R71.8 Other abnormality of red blood cells
ICD-9-CM Volume 2 Index entries containing back-references to 790.09:
  • Abnormal, abnormality, abnormalities - see also Anomaly
    • red blood cells 790.09
      • morphology 790.09
      • volume 790.09
  • Anisocytosis 790.09
  • Findings, (abnormal), without diagnosis (examination) (laboratory test) 796.4
    • anisocytosis 790.09
    • poikilocytosis 790.09
    • red blood cell 790.09
      • count 790.09
      • morphology 790.09
      • sickling 790.09
      • volume 790.09
    • sickling of red blood cells 790.09
  • Poikilocytosis 790.09
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 790.09 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.