icd 10 code for anti myelin associated glycoprotein peripheral neuropathy

by Jan Johns III 8 min read

89.

Full Answer

What is the ICD 10 code for peripheral neuropathy?

This is the American ICD-10-CM version of G62.9 - other international versions of ICD-10 G62.9 may differ. A disorder affecting the cranial nerves or the peripheral nervous system.

What is the ICD 10 code for polyneuropathy?

Other specified polyneuropathies. G62.89 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2018/2019 edition of ICD-10-CM G62.89 became effective on October 1, 2018. This is the American ICD-10-CM version of G62.89 - other international versions of ICD-10 G62.89 may differ.

What is the ICD 10 code for Neurologic diagnosis?

G90.09 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2018/2019 edition of ICD-10-CM G90.09 became effective on October 1, 2018. This is the American ICD-10-CM version of G90.09 - other international versions of ICD-10 G90.09 may differ.

What is anti-MAG peripheral neuropathy?

Anti-MAG peripheral neuropathy is a very rare disease, constituting perhaps 5% of CIDP-like disorders. Anti-MAG occurs when the body’s own immune system develops antibodies against a key glycoprotein (myelin-associated glycoprotein, or MAG). MAG is essential to maintaining a healthy peripheral nervous system.

What is anti myelin associated glycoprotein?

Anti-myelin associated glycoprotein (MAG) neuropathy is a chronic disorder in which IgM antibodies react with Schwann cell glycoproteins, including MAG and peripheral myelin protein 22 (PMP22). Nerve conduction studies show features of axon loss and predominantly distal slowing consistent with demyelination.

What ICD-10 code for peripheral sensory neuropathy?

Other idiopathic peripheral autonomic neuropathy G90. 09 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM G90. 09 became effective on October 1, 2021.

What is the ICD-10-CM code for CIDP?

ICD-10-CM Code for Chronic inflammatory demyelinating polyneuritis G61. 81.

What is g62 9 neuropathy?

A disorder affecting the cranial nerves or the peripheral nervous system. It is manifested with pain, tingling, numbness, and muscle weakness. It may be the result of physical injury, toxic substances, viral diseases, diabetes, renal failure, cancer, and drugs.

Is polyneuropathy the same as peripheral neuropathy?

Polyneuropathy is when multiple peripheral nerves become damaged, which is also commonly called peripheral neuropathy. Peripheral nerves are the nerves outside of the brain and spinal cord. They relay information between the central nervous system (CNS), and all other parts of the body.

What is the difference between neuropathy and polyneuropathy?

Some forms of neuropathy involve damage to only one nerve (called mononeuropathy). Neuropathy affecting two or more nerves in different areas is called multiple mononeuropathy or mononeuropathy multiplex. More often, many or most of the nerves are affected (called polyneuropathy).

What is CIDP autoimmune disease?

Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a slowly developing autoimmune disorder in which the body's immune system attacks the myelin that insulates and protects your body's nerves. The exact cause is not known. Common symptoms are gradual weakness or sensation changes in the arms or legs.

What are the symptoms of chronic inflammatory demyelinating polyneuropathy?

What are the symptoms of CIDP?Tingling in the arms and legs.Gradual weakening of the arms and legs.Loss of reflexes.Loss of balance and your ability to walk.Loss of feeling in the arms and legs, which often starts with not being able to feel a pin prick.

What is acute inflammatory demyelinating polyneuropathy?

Acute inflammatory demyelinating polyneuropathy (AIDP) is an autoimmune process characterized by progressive areflexic weakness and mild sensory changes. Sensory symptoms often precede motor weakness. About 20% of patients end up with respiratory failure.

What is the ICD-9 code for peripheral neuropathy?

356.9ICD-9-CM Coding Peripheral neuropathy that is not further specified as being caused by an underlying condition is assigned to code 356.9.

Can you code E11 40 and E11 42?

If you look in the alphabetical index under diabetes/diabetic with neuropathy it is E11. 40 (type 2 DM with diabetic neuropathy, unspecified). You cannot go with E11. 42 because that is specifically with polyneuropathy which is not documented.

What is other idiopathic peripheral autonomic neuropathy?

Idiopathic peripheral neuropathy refers to damage of the peripheral nerves where cause can not be determined. When the peripheral nerves are damaged, there are often symptoms that affect the feet.

Expected Turnaround Time

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Collection

Separate serum from cells. Transfer the serum into a LabCorp PP transpak frozen purple tube with screw cap (LabCorp No. 49482). Freeze immediately and maintain frozen at ≤ -20°C until tested. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Patient Preparation

Lipemic samples can be avoided by having the patient fast for 12 hours prior to collection.

Causes for Rejection

Non-serum sample received; non-frozen serum received; grossly lipemic, hemolytic or icteric sample received; cryoglobulin present

Limitations

Results of this test are labeled for research purposes only by the assay's manufacturer. The performance characteristics of this assay have not been established by the manufacturer.

Methodology

BUHLMANN™ anti-MAG ELISA. This assay measures antibodies to purified human MAG and has been employed in numerous clinical studies. 1-3,7,8,15-22,24-40

Additional Information

MAG is a transmembrane lectin that preferentially binds to alpha-2,3-linked sialic acid terminal carbohydrates on cell surface molecules. It is localized in the oligodendroglial membranes of myelin sheaths and Schwann cells.

What is myelin glycoprotein?

Myelin-associated glycoprotein (MAG) is a glycoprotein that is specific to Schwann cells, which create myelin for nerve cells in the peripheral nervous system.

How do antibodies affect neuropathy?

As these proteins are important in various signal cascades that eventually lead to the Schwann cells creating myelin, these antibodies basically halt myelin creation leading to the neuropathy. There is still, however, much debate as to the actual cause for these antibodies to be created. There has been some research to suggest that these antibodies are linked to various forms of amyloidosis as patients with amyloidosis experience elevated anti-MAG antibodies usually leading to a form of neuropathy. This does not, however, provide any evidence as to the mechanisms behind the creation of the antibodies.

What is the best treatment for MAG neuropathy?

Rituximab is considered to be one of the most promising drugs in the treatment of anti-MAG peripheral neuropathy. This drug is an antibody against a protein which is primarily found on the surface of B cells which, when attached, destroys the B cells. This drug has been used as a treatment in many autoimmune diseases as well as lymphomas and transplant rejection. Because of its ability to suppress the immune system, it has been used to treat anti-MAG neuropathy in the hopes that it will destroy cells that would target necessary glycoproteins on the Schwann cells. Studies in patients has shown that most patients experience marked increase in sensory and motor abilities within the first few months of therapy. There are, however, long term studies that have shown that treatment with rituximab can create many immune problems. As with most immunosuppressant drugs, there is a risk of other infections and diseases that are normally easily fought off by the immune system will be allowed take a foothold. Studies have shown that after long term treatment, patients experience many of these problems as well as a decline in their neuropathy. This has led to further studies being conducted on the drug's safety profile and overall effectiveness as a treatment.

What happens when myelin sheath is disrupted?

Disruption of the myelin sheath on cells that are normally myelinated allows leakage of action potential much like a faulty wire will allow leakage of electricity in a circuit. This slows the messages being sent along those nerves and disrupts normal function.

Why is myelin important?

Myelin is an important part of neuron cells and provides insulation allowing the neuron's action potential to travel faster and more consistently. In order to provide insulation, multiple layers of closely opposing membrane are wrapped around the axon. By acting as an electrical insulator, the conduction ability of the axon is sped up considerably ...

What is anti-mag neuropathy?

Anti-MAG Peripheral Neuropathy is a specific type of peripheral neuropathy in which the person's own immune system attacks cells that are specific in maintaining a healthy nervous system. As these cells are destroyed by antibodies, the nerve cells in the surrounding region begin to lose function and create many problems in both sensory ...

How to test for elevated IgM?

These can also be tested either by drawing serum from a patient or by drawing spinal fluid from a spinal tap and testing using an assay or blot.