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 Apr 10, 2025.

Fact Checked by Ericka Pingol.

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M54.9 – Dorsalgia, unspecified

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

Frequently asked questions

How is M54.9 different from M54.5?

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.

Can M54.9 be used for both inpatient and outpatient settings?

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.

What information should be documented using the M54.9 code in medical records?

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.

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