Diagnosis Code C81.91
Information for Medical Professionals
- 201.91 - Hodgkins dis NOS head
- Hodgkin's disease of lymph nodes of head, face AND/OR neck
Information for Patients
Also called: Hodgkin lymphoma
Hodgkin disease is a type of lymphoma. Lymphoma is a cancer of a part of the immune system called the lymph system. The first sign of Hodgkin disease is often an enlarged lymph node. The disease can spread to nearby lymph nodes. Later it may spread to the lungs, liver, or bone marrow. The exact cause is unknown.
Hodgkin disease is rare. Symptoms include
- Painless swelling of the lymph nodes in the neck, armpits, or groin
- Fever and chills
- Night sweats
- Weight loss
- Loss of appetite
- Itchy skin
To diagnose Hodgkin disease, doctors use a physical exam and history, blood tests, and a biopsy. Treatment depends on how far the disease has spread. It often includes radiation therapy or chemotherapy.
The earlier the disease is diagnosed, the more effective the treatment. In most cases, Hodgkin disease can be cured.
NIH: National Cancer Institute
- Chest radiation - discharge (Medical Encyclopedia)
- Hodgkin lymphoma (Medical Encyclopedia)
- Hodgkin lymphoma - children (Medical Encyclopedia)
- What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)
General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
- No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
- Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.
Present on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.