2025 ICD-10-CM Diagnosis Code M79.7

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

Clinical Classification

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

Clinical Information

• Fibromyalgia

  a common nonarticular rheumatic syndrome characterized by myalgia and multiple points of focal muscle tenderness to palpation (trigger points). muscle pain is typically aggravated by inactivity or exposure to cold. this condition is often associated with general symptoms, such as sleep disturbances, fatigue, stiffness, headaches, and occasionally depression. there is significant overlap between fibromyalgia and the chronic fatigue syndrome (fatigue syndrome, chronic). fibromyalgia may arise as a primary or secondary disease process. it is most frequent in females aged 20 to 50 years. (from adams et al., principles of neurology, 6th ed, p1494-95)

• Fibromyositis

  inflammation and fibrous degeneration of a muscle.

MS-DRG Mapping for ICD-10-CM Code M79.7

Diagnosis-Related Groups (DRGs) are used to classify hospital cases for billing and healthcare management. They help standardize how hospitals and other providers are reimbursed for inpatient care. Patients are grouped based on their principal diagnosis into broader categories called Major Diagnostic Categories (MDCs).

Once assigned to a DRG, the hospital receives a set payment for the patient’s care, regardless of the actual services provided. This fixed rate is intended to cover the typical cost of treating patients within that group. The payment amount depends on the DRG's relative weight, which reflects the expected complexity and cost of care based on the severity of the patient’s condition.

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 V42.0 applicable from 10/01/2024 through 09/30/2025.

Convert M79.7 to ICD-9-CM

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

Patient Education

Fibromyalgia

Fibromyalgia is chronic (long-lasting) condition that causes pain all over the body, fatigue, and other symptoms. There is no cure, but treatments can help with the symptoms.

What causes fibromyalgia?

The exact cause of fibromyalgia is unknown. Studies of the brains of people with fibromyalgia found that they seem to process pain differently than people who don't have it. They may feel pain when others do not, and they may also have a more severe reaction to pain.

Fibromyalgia can run in families, so genetics may also play a role. Other factors may also be involved, such as having certain diseases that cause pain.

Who is at risk for fibromyalgia?

Anyone can get fibromyalgia, but it is more common in:

• Women; they are twice as likely to have fibromyalgia
• Middle-aged people; your chance of having it increases as you get older
• People with certain diseases, such as lupus, rheumatoid arthritis, osteoarthritis or ankylosing spondylitis
• People who have a family member with fibromyalgia

What are the symptoms of fibromyalgia?

The main symptoms of fibromyalgia are:

• Chronic (long-lasting) pain and stiffness all over the body. People often describe it as aching, burning, or throbbing.
• Fatigue and tiredness.
• Trouble sleeping.

Other symptoms may include:

• Problems with thinking, memory, and concentration (sometimes called "fibro fog")
• Muscle and joint stiffness
• Numbness or tingling in the arms and legs
• Sensitivity to light, noise, odors, and temperature

People who have fibromyalgia are also more likely to have certain diseases, including:

• Anxiety
• Depression
• Headaches, including migraines
• Irritable bowel syndrome
• Pain in the face or jaw, including disorders of the jaw know as temporomandibular joint syndrome (TMJ)

How is fibromyalgia diagnosed?

Fibromyalgia can be hard to diagnose. It sometimes takes visits to several different health care providers to get a diagnosis. One problem is that there isn't a specific test for it. And the main symptoms, pain and fatigue, are common in many other conditions. Providers have to rule out other causes of the symptoms before making a diagnosis of fibromyalgia. This is called making a differential diagnosis.

To find out if you have fibromyalgia, your provider:

• Will take your medical history, including asking detailed questions about your symptoms
• Will do a physical exam
• May order x-rays and blood tests to rule out other conditions

What are the treatments for fibromyalgia?

Not all providers are familiar with fibromyalgia and its treatment. You should see a provider or team of providers who specialize in the treatment of fibromyalgia.

There is no cure for fibromyalgia, so treatment focuses on relieving the symptoms. Providers usually use a combination of treatments, including medicines, lifestyle changes, talk therapy, and complementary therapies:

• Medicines
• Certain antidepressants and anti-seizure medicines, which may help with pain or sleep problems.
• Pain relievers.
• Lifestyle changes
• Getting enough sleep.
• Getting regular physical activity. If you have not already been active, start slowly and gradually increase how much activity you get. You may want to see a physical therapist, who can help you create a plan that is right for you.
• Learning how to manage stress.
• Learning to pace yourself. If you do too much, it can make your symptoms worse. So you need to learn to balance being active with your need for rest.
• Talk therapy, such as cognitive behavioral therapy (CBT), can help you learn strategies to deal with pain, stress, and negative thoughts. If you also have depression along with your fibromyalgia, talk therapy can help with that too.
• Complementary therapies have helped some people with the symptoms of fibromyalgia. But researchers need to do more studies to show which ones are effective. You could consider trying them, but you should check with your provider first. These therapies include:
• Mindfulness meditation.
• Biofeedback, which uses electronic devices to measure body functions such as breathing and heart rate. This teaches you to be more aware of your body functions so you can learn to control them.
• Movement therapies such as yoga and tai chi.
• Massage therapy.
• Acupuncture.

[Learn More in MedlinePlus]

Fibromyalgia

Fibromyalgia is a common condition characterized by long-lasting (chronic) pain affecting many areas of the body. The pain is associated with tenderness that occurs with touch or pressure on the muscles, joints, or skin. Some affected individuals also report numbness, tingling, or a burning sensation (paresthesia) in the arms and legs.

Other signs and symptoms of fibromyalgia include excessive tiredness (exhaustion); sleep problems, such as waking up feeling unrefreshed; and problems with memory or thinking clearly. People with fibromyalgia often report additional types of pain, including headaches, back and neck pain, sore throat, pain or clicking in the jaw (temporomandibular joint dysfunction), and stomach pain or digestive disorders such as irritable bowel syndrome. They have an increased likelihood of developing mood or psychiatric disorders including depression, anxiety, and obsessive-compulsive disorder. However, many people with fibromyalgia do not have a mental health condition.

The major signs and symptoms of fibromyalgia can occur by themselves or together with another chronic pain condition such as osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, or systemic lupus erythematosus.

[Learn More in MedlinePlus]

Fibromyalgia

Fibromyalgia is a long-lasting or chronic disorder that causes muscle pain and fatigue (feeling tired).
[Learn More in MedlinePlus]

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.