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  6. 2024 ICD-10-CM Code R71.8
Version 2024
Billable Code
No Valid Principal Dx
MS-DRG Mapping
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2024 ICD-10-CM Diagnosis Code R71.8

Other abnormality of red blood cells

ICD-10-CM Code:
R71.8
ICD-10 Code for:
Other abnormality of red blood cells
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    (R00–R99)
    • Abnormal findings on examination of blood, without diagnosis
      (R70-R79)
      • Abnormality of red blood cells
        (R71)

R71.8 is a billable diagnosis code used to specify a medical diagnosis of other abnormality of red blood cells. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abnormal erythrocyte destruction
  • Abnormal erythrocyte production
  • Abnormal red blood cell volume
  • Alteration of hemoglobin concentration
  • Anemia due to membrane defect
  • Anemia due to membrane defect
  • Anemia due to membrane defect
  • Anemia due to membrane defect
  • Anemia due to membrane defect
  • Anemia due to membrane defect
  • Anemia due to membrane defect
  • Anemia due to membrane defect
  • Anisocytosis, red cells
  • Ascorbate-cyanide detected by screening
  • Auto-agglutination of red blood cell
  • Babesia red blood cell inclusion
  • Basophilic stippling
  • Blister cells
  • Burr cells present
  • Cabot's ring bodies
  • Carboxyhemoglobin above reference range
  • Carboxyhemoglobin below reference range
  • Color index level - finding
  • Color index level - finding
  • Dacrocytosis
  • Decreased blood erythrocyte volume
  • Decreased erythrocyte destruction
  • Decreased erythrocyte life span
  • Decreased erythrocyte production
  • Decreased heme-heme interaction
  • Decreased osmotic fragility
  • Dimorphic red blood cell population
  • Dyserythropoiesis
  • Eccentrocytosis
  • Erythrocyte aggregation
  • Erythrocyte color index above reference range
  • Erythrocyte color index below reference range
  • Erythrocyte life span finding
  • Erythrocyte membrane abnormality
  • Erythrocyte sedimentation rate - finding
  • Erythrocyte sedimentation rate - finding
  • Erythrocyte sedimentation rate below reference range
  • Erythrocyte sedimentation rate outside reference range
  • Erythrocyte sequestration
  • Erythrocytic maturation arrest
  • Erythrophagocytosis
  • Erythropoiesis finding
  • Erythropoiesis finding
  • Erythropoiesis finding
  • Erythropoiesis finding
  • Erythropoiesis finding
  • Erythropoiesis finding
  • Erythropoiesis finding
  • Erythropoiesis finding
  • Extramedullary erythropoiesis
  • Extramedullary hematopoiesis
  • Extravascular hemolysis
  • Finding of red blood cell staining
  • Finding of red blood cell staining
  • Folic acid above reference range
  • Folic acid below reference range
  • Heinz bodies
  • Hematocrit - PCV level - finding
  • Hematocrit - PCV level - finding
  • Hematocrit above reference range
  • Hematocrit outside reference range
  • Hemoglobin above reference range
  • Hemoglobin C crystals
  • Hemoglobin H inclusions
  • Hemoglobin level outside reference range
  • Hemoglobin SC crystals
  • Hemolysis
  • Hereditary elliptocytosis
  • Hereditary elliptocytosis
  • Hereditary elliptocytosis
  • Hereditary elliptocytosis
  • Hereditary elliptocytosis
  • Hereditary elliptocytosis
  • Hereditary elliptocytosis
  • Hereditary elliptocytosis due to abnormal protein 4.1
  • Hereditary elliptocytosis due to alpha spectrin defect
  • Hereditary elliptocytosis due to beta spectrin defect in self-association
  • Hereditary elliptocytosis due to beta spectrin-ankyrin interaction
  • Hereditary elliptocytosis due to deficiency of protein 4.1
  • Hereditary elliptocytosis due to glycophorin C deficiency
  • Hereditary elliptocytosis with transient poikilocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis
  • Hereditary spherocytosis due to beta spectrin defect
  • Hereditary spherocytosis due to combined deficiency of spectrin AND ankyrin
  • Hereditary spherocytosis due to deficiency of protein 4.2
  • Hereditary spherocytosis due to spectrin deficiency
  • Howell Jolly bodies
  • Hypochromic red blood cells
  • Increased blood erythrocyte volume
  • Increased erythrocyte destruction
  • Increased erythrocyte ghost cells in blood
  • Increased erythrocyte production
  • Increased heme-heme interaction
  • Increased osmotic fragility
  • Ineffective erythropoiesis
  • Intravascular hemolysis
  • Leptocytosis
  • Malarial red blood cell inclusion
  • Mean cell hemoglobin concentration - finding
  • Mean cell hemoglobin concentration - finding
  • Mean cell hemoglobin level - finding
  • Mean cell hemoglobin level - finding
  • Mean cell hemoglobin level - finding
  • Mean corpuscular hemoglobin above reference range
  • Mean corpuscular hemoglobin below reference range
  • Mean corpuscular hemoglobin concentration above reference range
  • Mean corpuscular hemoglobin concentration below reference range
  • Mean corpuscular hemoglobin outside reference range
  • Mean corpuscular volume above reference range
  • Mean corpuscular volume below reference range
  • Megaloblastoid erythropoiesis
  • Methemoglobin above reference range
  • Methemoglobin below reference range
  • Microcytosis
  • Microspherocytes seen
  • Mild hereditary spherocytosis due to combined deficiency of spectrin AND ankyrin
  • Mild hereditary spherocytosis due to spectrin deficiency
  • Pappenheimer bodies
  • Plasmodium macrogametocyte in red cell
  • Plasmodium malariae gametocyte in red cell
  • Plasmodium malariae gametocyte in red cell
  • Plasmodium merozoite in red cell
  • Plasmodium microgametocyte in red cell
  • Poikilocytosis
  • Polychromatic red blood cells
  • Post-artesunate delayed hemolysis
  • Presence of hemoglobin alpha-chain variant
  • Presence of hemoglobin delta chain variant
  • Presence of unidentified hemoglobin variant
  • Puddle cells
  • Pyknocytosis
  • RBC enzymes abnormal
  • RBC's - megaloblasts
  • Red blood cell agglutination
  • Red blood cell color - finding
  • Red blood cell color - finding
  • Red blood cell count above reference range
  • Red blood cell count below reference range
  • Red blood cell count outside reference range
  • Red blood cell folate above reference range
  • Red blood cell folate below reference range
  • Red blood cell inclusions
  • Red blood cell maturation age - finding
  • Red blood cell morphology abnormal
  • Red blood cell population finding
  • Red blood cell population finding
  • Red blood cell population finding
  • Red blood cell population finding
  • Red blood cell population finding
  • Red blood cell size - finding
  • Red cell folate outside reference range
  • Reticulocyte count outside reference range
  • Ringed sideroblast
  • Rouleaux
  • Schistocytosis
  • Sensitized cell
  • Sensitized red cell
  • Severe hereditary spherocytosis due to combined deficiency of spectrin AND ankyrin
  • Severe hereditary spherocytosis due to spectrin deficiency
  • Sickling test positive
  • Siderocytophagocytosis
  • Sputnik cells
  • Sugar-water test positive
  • Sulfhemoglobin above reference range
  • Sulfhemoglobin below reference range
  • Total iron binding capacity below reference range

Clinical Classification

Clinical Information

  • Heinz Bodies

    abnormal intracellular inclusions, composed of denatured hemoglobin, found on the membrane of red blood cells. they are seen in thalassemias, enzymopathies, hemoglobinopathies, and after splenectomy.

  • Erythrocyte Aggregation

    the formation of clumps of red blood cells under low or non-flow conditions, resulting from the attraction forces between the red blood cells. the cells adhere to each other in rouleaux aggregates. slight mechanical force, such as occurs in the circulation, is enough to disperse these aggregates. stronger or weaker than normal aggregation may result from a variety of effects in the erythrocyte membrane or in blood plasma. the degree of aggregation is affected by erythrocyte deformability, erythrocyte membrane sialylation, masking of negative surface charge by plasma proteins, etc. blood viscosity and the erythrocyte sedimentation rate are affected by the amount of erythrocyte aggregation and are parameters used to measure the aggregation.

  • HELLP Syndrome

    a syndrome of hemolysis, elevated liver enzymes, and low blood platelets count (thrombocytopenia). hellp syndrome is observed in pregnant women with pre-eclampsia or eclampsia who also exhibit liver damage and abnormalities in blood coagulation.

  • Hemolysis

    the destruction of erythrocytes by many different causal agents such as antibodies, bacteria, chemicals, temperature, and changes in tonicity.

  • Erythrocytes

    red blood cells. mature erythrocytes are non-nucleated, biconcave disks containing hemoglobin whose function is to transport oxygen.

  • Anisopoikilocytosis

    a test result indicating the presence of red cells of various sizes and shapes in the peripheral blood.

  • Hereditary Pyropoikilocytosis

    an autosomal recessive inherited severe hemolytic anemia. it is a subtype of hereditary elliptocytosis and is characterized by partial spectrin deficiency.

  • Mild to Moderate Anisopoikilocytosis

    a test result indicating a mild to moderate degree of anisopoikilocytosis in the peripheral blood.

  • Poikilocytosis

    an increase in the number of abnormally shaped red blood cells.

  • Hereditary Spherocytosis

    an autosomal dominant inherited disorder characterized by the presence of smaller than normal, sphere-shaped erythrocytes. it results in hemolytic anemia and splenomegaly.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Abnormal red-cell morphology NOS
  • Abnormal red-cell volume NOS
  • Anisocytosis
  • Poikilocytosis

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert R71.8 to ICD-9-CM

  • ICD-9-CM Code: 790.09 - Abnormal RBC NEC

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.