ICD-10 Diagnosis Code M11.869

Other specified crystal arthropathies, unspecified knee

Diagnosis Code M11.869

ICD-10: M11.869
Short Description: Other specified crystal arthropathies, unspecified knee
Long Description: Other specified crystal arthropathies, unspecified knee
This is the 2017 version of the ICD-10-CM diagnosis code M11.869

Code Classification
  • Diseases of the musculoskeletal system and connective tissue
    • Inflammatory polyarthropathies (M05-M14)
      • Other crystal arthropathies (M11)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code M11.869 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Articular cartilage disorder of knee
  • Chondrocalcinosis due to pyrophosphate crystals
  • Chondrocalcinosis due to pyrophosphate crystals of the knee
  • Chondrocalcinosis of knee joint
  • Crystal arthropathy of knee

Information for Patients


If you feel pain and stiffness in your body or have trouble moving around, you might have arthritis. Most kinds of arthritis cause pain and swelling in your joints. Joints are places where two bones meet, such as your elbow or knee. Over time, a swollen joint can become severely damaged. Some kinds of arthritis can also cause problems in your organs, such as your eyes or skin.

Types of arthritis include

  • Osteoarthritis is the most common type of arthritis. It's often related to aging or to an injury.
  • Autoimmune arthritis happens when your body's immune system attacks healthy cells in your body by mistake. Rheumatoid arthritis is the most common form of this kind of arthritis.
  • Juvenile arthritis is a type of arthritis that happens in children.
  • Infectious arthritis is an infection that has spread from another part of the body to the joint.
  • Psoriatic arthritis affects people with psoriasis.
  • Gout is a painful type of arthritis that happens when too much uric acid builds up in the body. It often starts in the big toe.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

  • Arthritis
  • Osteotomy of the knee

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