2024 ICD-10-CM Diagnosis Code R59.1

Approximate Synonyms

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

• Deep lymphadenopathy
• Fibrotic lymphadenopathy
• Finding of lymph node
• Generalized enlarged lymph nodes
• Lymphadenopathy
• Lymphadenopathy co-occurrent with human immunodeficiency virus infection
• Paravesicular lymphadenopathy
• Persistent generalized lymphadenopathy
• Postvesicular lymphadenopathy
• Reactive lymphadenopathy
• Superficial lymphadenopathy
• Swelling of lymphoreticular structure
• Tender lymph node
• Tenderness of lymphoreticular structure
• Tethering of lymph node

Clinical Information

• AIDS-Related Complex

  a prodromal phase of infection with the human immunodeficiency virus (hiv). laboratory criteria separating aids-related complex (arc) from aids include elevated or hyperactive b-cell humoral immune responses, compared to depressed or normal antibody reactivity in aids; follicular or mixed hyperplasia in arc lymph nodes, leading to lymphocyte degeneration and depletion more typical of aids; evolving succession of histopathological lesions such as localization of kaposi's sarcoma, signaling the transition to the full-blown aids.

• HIV

  human immunodeficiency virus. a non-taxonomic and historical term referring to any of two species, specifically hiv-1 and/or hiv-2. prior to 1986, this was called human t-lymphotropic virus type iii/lymphadenopathy-associated virus (htlv-iii/lav). from 1986-1990, it was an official species called hiv. since 1991, hiv was no longer considered an official species name; the two species were designated hiv-1 and hiv-2.

• HIV Antibodies

  antibodies reactive with hiv antigens.

• HIV Antigens

  antigens associated with specific proteins of the human adult t-cell immunodeficiency virus (hiv); also called htlv-iii-associated and lymphadenopathy-associated virus (lav) antigens.

• Immunoblastic Lymphadenopathy

  a disorder characterized by proliferation of arborizing small vessels, prominent immunoblastic proliferations and amorphous acidophilic interstitial material. clinical manifestations include fever, sweats, weight loss, generalized lymphadenopathy and frequently hepatosplenomegaly.

• Lymphadenopathy

  disease of lymph nodes which are abnormal in size, number or consistency.

• Spotted Fever Group Rickettsiosis

  a group of arthropod-borne diseases caused by spotted fever bio-group members of rickettsia. they are characterized by fever, headache, and petechial (spotted) rash.

• Lymph Nodes

  they are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system.

• Rickettsia

  a genus of gram-negative, aerobic, rod-shaped bacteria often surrounded by a protein microcapsular layer and slime layer. the natural cycle of its organisms generally involves a vertebrate and an invertebrate host. species of the genus are the etiological agents of human diseases, such as typhus.

R59.1 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert R59.1 to ICD-9-CM

• ICD-9-CM Code: 785.6 - Enlargement lymph nodes
  Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

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.