2024 ICD-10-CM Diagnosis Code M90.669

Osteitis deformans in neoplastic diseases, unspecified lower leg

ICD-10-CM Code:
M90.669
ICD-10 Code for:
Osteitis deformans in neoplastic diseases, unsp lower leg
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the musculoskeletal system and connective tissue
    (M00–M99)
    • Other osteopathies
      (M86-M90)
      • Osteopathies in diseases classified elsewhere
        (M90)

M90.669 is a billable diagnosis code used to specify a medical diagnosis of osteitis deformans in neoplastic diseases, unspecified lower leg. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like M90.669 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Clinical Classification

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:

  • Manifestation diagnoses - Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Convert M90.669 to ICD-9-CM

  • ICD-9-CM Code: 731.1 - Osteitis def in oth dis
    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.

Patient Education


Paget's Disease of Bone

What is Paget's disease of bone?

Paget's disease of bone is a chronic bone disorder. Normally, there is a process in which your bones break down and then regrow. In Paget's disease, this process is abnormal. There is excessive breakdown and regrowth of bone. Because the bones regrow too quickly, they are bigger and softer than normal. They may be misshapen and easily fractured (broken). Paget's usually affects just one or a few bones.

What causes Paget's disease of bone?

Researchers do not know for sure what causes Paget's disease. Environmental factors may play a role. In some cases, the disease runs in families, and several genes have been linked to the disease.

Who is at risk for Paget's disease of bone?

The disease is more common in older people and those of northern European heritage. If you have a close relative who has Paget's, you are much more likely to have it.

What are the symptoms of Paget's disease of bone?

Many people do not know that they have Paget's, because it often has no symptoms. When there are symptoms, they are similar to those of arthritis and other disorders. The symptoms include:

  • Pain, which may be due to the disease or to arthritis, which can be a complication of Paget's
  • Headaches and hearing loss, which can happen when Paget's disease affects the skull
  • Pressure on the nerves, which can happen when Paget's disease affects the skull or spine
  • Increased head size, bowing of a limb, or curvature of the spine. This can happen in advanced cases.
  • Hip pain, if Paget's disease affects the pelvis or thighbone
  • Damage to the cartilage of your joints, which may lead to arthritis

Usually, Paget's disease gets worse slowly over time. It does not spread to normal bones.

What other problems can Paget's disease of bone cause?

Paget's disease can lead to other complications, such as:

  • Arthritis, because the misshapen bones can cause increased pressure and more wear and tear on the joints
  • Heart failure. In severe Paget's disease, the heart has to work harder to pump blood to affected bones. Heart failure is more likely if you also have hardening of the arteries.
  • Kidney stones, which can happen when the excessive breakdown of the bone leads to extra calcium in the body
  • Nervous system problems, since the bones can cause pressure on the brain, spinal cord, or nerves. There may also be reduced blood flow to the brain and spinal cord.
  • Osteosarcoma, cancer of the bone
  • Loose teeth, if Paget's disease affects the facial bones
  • Vision loss, if Paget's disease in the skull affects the nerves. This is rare.

How is Paget's disease of bone diagnosed?

Your health care provider may use many tools to make a diagnosis:

  • A medical history, which includes asking about your symptoms
  • A physical exam
  • An x-ray of the affected bones. Paget's disease is almost always diagnosed using x-rays.
  • An alkaline phosphatase blood test
  • A bone scan

Sometimes the disease is found by accident when one of these tests is done for another reason.

What are the treatments for Paget's disease of bone?

To avoid complications, it is important to find and treat Paget's disease early. The treatments include:

  • Medicines. There are several different medicines to treat Paget's disease. The most common type is bisphosphonates. They help reduce bone pain and stop or slow down the progress of the disease.
  • Surgery is sometimes needed for certain complications of the disease. There are surgeries to
    • Allow fractures (broken bones) to heal in a better position
    • Replace joints such as the knee and hip when there is severe arthritis
    • Realign a deformed bone to reduce the pain in weight-bearing joints, especially the knees
    • Reduce pressure on a nerve, if enlargement of the skull or spine injuries effects the nervous system

Diet and exercise do not treat Paget's, but they can help to keep your skeleton healthy. If you do not have kidney stones, you should make sure to get enough calcium and vitamin D through your diet and supplements. Besides keeping your skeleton healthy, exercise can prevent weight gain and maintain the mobility of your joints. Talk with your health care provider before you start a new exercise program. You need to make sure that the exercise does not put too much stress on the affected bones.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Paget’s Disease of Bone

Paget’s disease of bone is a chronic (long-lasting) disorder that causes bones to grow larger and become weaker than normal.
[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.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.