ICD-10-CM Code M11.80

Other specified crystal arthropathies, unspecified site

Version 2020 Billable Code

Valid for Submission

M11.80 is a billable code used to specify a medical diagnosis of other specified crystal arthropathies, unspecified site. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M11.80 might also be used to specify conditions or terms like apatite-related arthropathy, asymptomatic calcium pyrophosphate deposition disease, calcium oxalate deposition disease, calcium pyrophosphate deposition disease, chondrocalcinosis due to dicalcium phosphate crystals, chondrocalcinosis due to pyrophosphate crystals, etc

Short Description:Other specified crystal arthropathies, unspecified site
Long Description:Other specified crystal arthropathies, unspecified site

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M11.80 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Apatite-related arthropathy
  • Asymptomatic calcium pyrophosphate deposition disease
  • Calcium oxalate deposition disease
  • Calcium pyrophosphate deposition disease
  • Chondrocalcinosis due to dicalcium phosphate crystals
  • Chondrocalcinosis due to pyrophosphate crystals
  • Congenital calcium pyrophosphate dihydrate crystal deposition disease
  • Idiopathic pyrophosphate arthritis
  • Monosodium urate arthritis and periarthritis
  • Pyrophosphate arthritis
  • Pyrophosphate tophus
  • Secondary pyrophosphate arthritis

Diagnostic Related Groups

The ICD-10 code M11.80 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert M11.80 to ICD-9

  • 712.80 - Cryst arthrop NEC-unspec (Approximate Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Inflammatory polyarthropathies (M05-M14)
      • Other crystal arthropathies (M11)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

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

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