Diagnosis Code C91.1
Information for Medical Professionals
References found for the code C91.1 in the Index of Diseases and Injuries:
- Inclusion Terms: Inclusion terms
List of terms is included under some codes. 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.
- Lymphoplasmacytic leukemia
- Richter syndrome
- Type 1 Excludes Notes: Type 1 Excludes Notes
A type 1 Excludes note is a pure excludes note. It means “NOT CODED HERE!” An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- lymphoplasmacytic lymphoma (C83.0-)
Information for Patients
Chronic Lymphocytic Leukemia
Also called: CLL
Leukemia is cancer of the white blood cells. White blood cells help your body fight infection. Your blood cells form in your bone marrow. In leukemia, the bone marrow produces abnormal white blood cells. These cells crowd out the healthy blood cells, making it hard for blood to do its work. In chronic lymphocytic leukemia (CLL), there are too many lymphocytes, a type of white blood cell.
CLL is the second most common type of leukemia in adults. It often occurs during or after middle age, and is rare in children.
Usually CLL does not cause any symptoms. If you have symptoms, they may include
- Painless swelling of the lymph nodes in the neck, underarm, stomach, or groin
- Pain or a feeling of fullness below the ribs
- Fever and infection
- Weight loss
Tests that examine the blood, bone marrow, and lymph nodes diagnose CLL. Your doctor may choose to just monitor you until symptoms appear or change. Treatments include radiation therapy, chemotherapy, surgery to remove the spleen, and targeted therapy. Targeted therapy uses substances that attack cancer cells without harming normal cells.
NIH: National Cancer Institute
- After chemotherapy - discharge
- B-cell leukemia/lymphoma panel
- Bone marrow transplant
- Bone marrow transplant - discharge
- Chronic lymphocytic leukemia (CLL)
- Understanding Chemotherapy - NIH - Easy-to-Read (National Cancer Institute)
- What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)