Other abnormality of red blood cells

This code signifies the presence of an atypical finding related to red blood cells that is not otherwise specified or classifiable to a more specific diagnosis. It indicates an abnormal characteristic or count of erythrocytes that falls outside of normal parameters, but for which a definitive diagnosis like anemia, polycythemia, or a specific red cell disorder has not been established.

This code is appropriate when laboratory results indicate an abnormality in red blood cell morphology, size, or number (e.g., anisocytosis, poikilocytosis, hypochromia) without a definitive diagnosis. It should be used when the provider documents an "abnormal red blood cells," "red cell abnormality NOS," or similar finding, and further investigation is pending or the specific cause is unknown. Documentation must clearly state an abnormality of red blood cells without specifying a more precise condition.

• Do not use this code if a more specific diagnosis for the red blood cell abnormality (e.g., specific type of anemia, polycythemia vera) is documented.
• Consider sequencing this code as a secondary diagnosis if the primary reason for the encounter is related to investigating the cause of the red blood cell abnormality.
• Always review the entire medical record for any additional information that might lead to a more specific and accurate diagnosis code.