M54.9 – Dorsalgia, unspecified

M54.9 – Dorsalgia, unspecified

Learn more about M54.9, the ICD-10-CM code for unspecified dorsalgia, its clinical description, synonyms, related codes, and FAQs about back pain diagnosis.

By Patricia Buenaventura on Aug 8, 2025.

Fact Checked by Ericka Pingol.

Use Code

M54.9 diagnosis code: Dorsalgia, unspecified

  • M54.9 is an ICD-10-CM code for diagnosing unspecified dorsalgia, which refers to back pain without a specified underlying cause or location.
  • Dorsalgia is a general term for discomfort and acute or chronic pain located in the dorsal (back) region that may range from mild to severe.
  • It can affect any part of the back, including the cervical (neck), thoracic (upper back), and lumbar (lower back) regions.
  • Diagnosis typically involves a thorough clinical examination, patient history, and imaging studies, such as X-rays or MRIs.

Is M54.9 billable?

Yes, M54.9 is a billable ICD-10-CM code that can indicate a diagnosis for reimbursement purposes.

Clinical information

  • Back pain is a common medical issue in the U.S., varying from a dull ache to sharp pain that may radiate down the leg. It can result from injuries, heavy lifting, or gradual age-related spine changes, and in some cases, from inflammatory arthritis or other health conditions (National Institute of Arthritis and Musculoskeletal and Skin Diseases, 2023).
  • Dorsalgia is a disorder characterized by a marked discomfort sensation in the dorsal region or a body structure felt in no other area but the back.
  • Patients with this condition commonly experience symptoms such as a painful sensation, constant ache, sharp pain, or an unpleasant feeling, indicating potential or actual damage in their lower back.
  • Poor posture, a sedentary lifestyle, and improper lifting techniques are common risk factors for chronic and acute back pain.
  • Conservative treatment options for dorsalgia include physical therapy, pain medication, hot or cold packs, lifestyle modifications, and complementary and alternative treatments.
  • In some cases, more invasive treatments, such as injections or surgery, may be necessary if conservative measures fail to provide relief.
  • Early intervention and proper management of dorsalgia can help prevent chronic pain and disability.

Synonyms include

  • Unspecified back pain
  • Backache, unspecified
  • Back discomfort
  • Generalized back pain
  • Non-specific dorsalgia
  • Backache without radiculopathy
  • Chronic back pain for greater than 3 months

Other ICD-10 codes commonly used for dorsalgia

Reference

National Institute of Arthritis and Musculoskeletal and Skin Diseases. (2023, February). Back pain. https://www.niams.nih.gov/health-topics/back-pain

Commonly asked questions

M54.9 refers to unspecified dorsalgia or back pain without a specified underlying cause or location, while M54.5 refers explicitly to low back pain.

Yes, M54.9 is a billable code that can be used for both inpatient and outpatient medical settings to indicate a diagnosis for reimbursement purposes.

Documentation should include a clear description of the patient's symptoms, any known contributing factors, and additional information necessary to support the diagnosis and treatment plan.

Related ICDs

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