ICD-10-CM Code M85.012

Fibrous dysplasia (monostotic), left shoulder

Version 2020 Billable Code

Valid for Submission

M85.012 is a billable code used to specify a medical diagnosis of fibrous dysplasia (monostotic), left shoulder. The code is valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:M85.012
Short Description:Fibrous dysplasia (monostotic), left shoulder
Long Description:Fibrous dysplasia (monostotic), left shoulder

Diagnostic Related Groups

The ICD-10 code M85.012 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.

  • 553 - BONE DISEASES AND ARTHROPATHIES WITH MCC
  • 554 - BONE DISEASES AND ARTHROPATHIES WITHOUT MCC

Convert M85.012 to ICD-9

  • 733.29 - Bone cyst NEC (Approximate Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Disorders of bone density and structure (M80-M85)
      • Other disorders of bone density and structure (M85)

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


Bone Diseases

Your bones help you move, give you shape and support your body. They are living tissues that rebuild constantly throughout your life. During childhood and your teens, your body adds new bone faster than it removes old bone. After about age 20, you can lose bone faster than you make bone. To have strong bones when you are young, and to prevent bone loss when you are older, you need to get enough calcium, vitamin D, and exercise. You should also avoid smoking and drinking too much alcohol.

Bone diseases can make bones easy to break. Different kinds of bone problems include

  • Low bone density and osteoporosis, which make your bones weak and more likely to break
  • Osteogenesis imperfecta makes your bones brittle
  • Paget's disease of bone makes them weak
  • Bones can also develop cancer and infections
  • Other bone diseases, which are caused by poor nutrition, genetics, or problems with the rate of bone growth or rebuilding

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


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Shoulder Injuries and Disorders

Your shoulder joint is composed of three bones: the clavicle (collarbone), the scapula (shoulder blade), and the humerus (upper arm bone). Your shoulders are the most movable joints in your body. They can also be unstable because the ball of the upper arm is larger than the shoulder socket that holds it. To remain in a stable or normal position, the shoulder must be anchored by muscles, tendons, and ligaments.

Because your shoulder can be unstable, it can be easily injured. Common problems include

  • Sprains and strains
  • Dislocations
  • Separations
  • Tendinitis
  • Bursitis
  • Torn rotator cuffs
  • Frozen shoulder
  • Fractures
  • Arthritis

Health care providers diagnose shoulder problems by using your medical history, a physical exam, and imaging tests.

Often, the first treatment for shoulder problems is RICE. This stands for Rest, Ice, Compression, and Elevation. Other treatments include exercise and medicines to reduce pain and swelling. If those don't work, you may need surgery.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


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