Macrocytosis ICD-10-CM Codes

Discover the ICD-10-CM codes associated with macrocytosis, essential for accurate medical documentation, billing, and tailored treatment approaches for 2023.

By Ashleigh Knowles on Feb 29, 2024.

Fact Checked by RJ Gumban.

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Macrocytosis ICD-10-CM Codes

What ICD-10 Codes are Used for Macrocytosis?

Macrocytosis refers to the presence of larger than normal red blood cells, often seen in blood tests. While it can be an indication of a variety of medical conditions, its accurate coding is vital for patient care, research, and medical billing. The ICD-10-CM offers standardized codes for this hematological finding.

Commonly Used ICD-10-CM Codes for Macrocytosis:

D75.81 - Primary polycythemia

A condition where the body produces too many red blood cells, leading to increased blood volume and viscosity.

D75.82 - Secondary polycythemia

Similar to primary polycythemia, but as a response to another condition like chronic hypoxia or tumors secreting erythropoietin.

R71.0 - Polycythemia vera

A type of blood cancer where the bone marrow produces too many red blood cells.

R71.1 - Excessive erythrocytosis

An increase in the number of red blood cells in the blood, which can lead to blood thickening.

(Note: Macrocytosis, as a descriptive term for larger red blood cells, is often a laboratory finding and might not always have a direct ICD-10-CM code. The physician would code for the underlying condition causing the macrocytosis.)

Which Macrocytosis ICD codes are Billable?

  • D75.81 - Yes
  • D75.82 - Yes
  • R71.0 - Yes
  • R71.1 - Yes

Clinical Information

  • Macrocytosis denotes the presence of enlarged red blood cells (RBCs) without an increase in the number of RBCs.
  • Often detected during a complete blood count (CBC) test.
  • Potential causes include vitamin B12 or folic acid deficiency, alcohol consumption, certain medications, liver disease, and bone marrow disorders.
  • Macrocytosis can be a sign of megaloblastic anemia, where the bone marrow produces fewer, but larger RBCs.
  • Treatment and management depend on identifying and addressing the underlying cause of macrocytosis.

Synonyms Include:

  • Megalocytic anemia
  • Macrocytic anemia
  • Large red blood cell disorder
  • Enlarged erythrocytes
  • RBC macrocytosis
Medical Billing and Coding Software

Commonly asked questions

When should a Macrocytosis ICD code be used?

A Macrocytosis ICD code should be used when a patient's blood test reveals the presence of abnormally large red blood cells and when there is a related medical diagnosis.

What are the common treatments for conditions resulting in Macrocytosis Diagnosis Codes?

Treatment usually targets the underlying cause. This could range from vitamin supplementation (in the case of deficiency) to medication adjustments or addressing liver disease or alcohol consumption.

What does a diagnosis code for Macrocytosis imply?

A diagnosis code for Macrocytosis signifies the presence of larger-than-normal red blood cells in a patient, which can indicate various underlying conditions.

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