Valid for Submission
M31.5 is a billable diagnosis code used to specify a medical diagnosis of giant cell arteritis with polymyalgia rheumatica. The code M31.5 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code M31.5 might also be used to specify conditions or terms like giant cell arteritis with polymyalgia rheumatica, polymyalgia rheumatica or temporal arteritis.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M31.5 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Giant cell arteritis with polymyalgia rheumatica
- Polymyalgia rheumatica
- Temporal arteritis
Diagnostic Related Groups - MS-DRG Mapping
Convert M31.5 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code M31.5 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Giant Cell Arteritis
Giant cell arteritis is a disorder that causes inflammation of your arteries, usually in the scalp, neck, and arms. It narrows the arteries, which keeps blood from flowing well. Giant cell arteritis often occurs with another disorder called polymyalgia rheumatica. Both are more common in women than in men. They almost always affect people over the age of 50.
Early symptoms of giant cell arteritis resemble the flu: fatigue, loss of appetite, and fever. Other symptoms include
- Pain and tenderness over the temples
- Double vision or visual loss, dizziness
- Problems with coordination and balance
- Pain in your jaw and tongue
Your doctor will make the diagnosis based on your medical history, symptoms, and a physical exam. There is no single test to diagnose giant cell arteritis, but you may have tests that measure inflammation.
Treatment is usually with corticosteroids. Early treatment is important; otherwise there is a risk of permanent vision loss or stroke. However, when properly treated, giant cell arteritis rarely comes back.
NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases
- ESR (Medical Encyclopedia)
- Temporal arteritis (Medical Encyclopedia)