ICD-10-CM Code M65

Synovitis and tenosynovitis

Version 2020 Non-Billable Code

Not Valid for Submission

M65 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of synovitis and tenosynovitis. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:M65
Short Description:Synovitis and tenosynovitis
Long Description:Synovitis and tenosynovitis

Consider the following ICD-10 codes with a higher level of specificity:

  • M65.0 - Abscess of tendon sheath
  • M65.00 - Abscess of tendon sheath, unspecified site
  • M65.01 - Abscess of tendon sheath, shoulder
  • M65.011 - Abscess of tendon sheath, right shoulder
  • M65.012 - Abscess of tendon sheath, left shoulder
  • M65.019 - Abscess of tendon sheath, unspecified shoulder
  • M65.02 - Abscess of tendon sheath, upper arm
  • M65.021 - Abscess of tendon sheath, right upper arm
  • M65.022 - Abscess of tendon sheath, left upper arm
  • M65.029 - Abscess of tendon sheath, unspecified upper arm
  • M65.03 - Abscess of tendon sheath, forearm
  • M65.031 - Abscess of tendon sheath, right forearm
  • M65.032 - Abscess of tendon sheath, left forearm
  • M65.039 - Abscess of tendon sheath, unspecified forearm
  • M65.04 - Abscess of tendon sheath, hand
  • M65.041 - Abscess of tendon sheath, right hand
  • M65.042 - Abscess of tendon sheath, left hand
  • M65.049 - Abscess of tendon sheath, unspecified hand
  • M65.05 - Abscess of tendon sheath, thigh
  • M65.051 - Abscess of tendon sheath, right thigh
  • M65.052 - Abscess of tendon sheath, left thigh
  • M65.059 - Abscess of tendon sheath, unspecified thigh
  • M65.06 - Abscess of tendon sheath, lower leg
  • M65.061 - Abscess of tendon sheath, right lower leg
  • M65.062 - Abscess of tendon sheath, left lower leg
  • M65.069 - Abscess of tendon sheath, unspecified lower leg
  • M65.07 - Abscess of tendon sheath, ankle and foot
  • M65.071 - Abscess of tendon sheath, right ankle and foot
  • M65.072 - Abscess of tendon sheath, left ankle and foot
  • M65.079 - Abscess of tendon sheath, unspecified ankle and foot
  • M65.08 - Abscess of tendon sheath, other site
  • M65.1 - Other infective (teno)synovitis
  • M65.10 - Other infective (teno)synovitis, unspecified site
  • M65.11 - Other infective (teno)synovitis, shoulder
  • M65.111 - Other infective (teno)synovitis, right shoulder
  • M65.112 - Other infective (teno)synovitis, left shoulder
  • M65.119 - Other infective (teno)synovitis, unspecified shoulder
  • M65.12 - Other infective (teno)synovitis, elbow
  • M65.121 - Other infective (teno)synovitis, right elbow
  • M65.122 - Other infective (teno)synovitis, left elbow
  • M65.129 - Other infective (teno)synovitis, unspecified elbow
  • M65.13 - Other infective (teno)synovitis, wrist
  • M65.131 - Other infective (teno)synovitis, right wrist
  • M65.132 - Other infective (teno)synovitis, left wrist
  • M65.139 - Other infective (teno)synovitis, unspecified wrist
  • M65.14 - Other infective (teno)synovitis, hand
  • M65.141 - Other infective (teno)synovitis, right hand
  • M65.142 - Other infective (teno)synovitis, left hand
  • M65.149 - Other infective (teno)synovitis, unspecified hand
  • M65.15 - Other infective (teno)synovitis, hip
  • M65.151 - Other infective (teno)synovitis, right hip
  • M65.152 - Other infective (teno)synovitis, left hip
  • M65.159 - Other infective (teno)synovitis, unspecified hip
  • M65.16 - Other infective (teno)synovitis, knee
  • M65.161 - Other infective (teno)synovitis, right knee
  • M65.162 - Other infective (teno)synovitis, left knee
  • M65.169 - Other infective (teno)synovitis, unspecified knee
  • M65.17 - Other infective (teno)synovitis, ankle and foot
  • M65.171 - Other infective (teno)synovitis, right ankle and foot
  • M65.172 - Other infective (teno)synovitis, left ankle and foot
  • M65.179 - Other infective (teno)synovitis, unspecified ankle and foot
  • M65.18 - Other infective (teno)synovitis, other site
  • M65.19 - Other infective (teno)synovitis, multiple sites
  • M65.2 - Calcific tendinitis
  • M65.20 - Calcific tendinitis, unspecified site
  • M65.22 - Calcific tendinitis, upper arm
  • M65.221 - Calcific tendinitis, right upper arm
  • M65.222 - Calcific tendinitis, left upper arm
  • M65.229 - Calcific tendinitis, unspecified upper arm
  • M65.23 - Calcific tendinitis, forearm
  • M65.231 - Calcific tendinitis, right forearm
  • M65.232 - Calcific tendinitis, left forearm
  • M65.239 - Calcific tendinitis, unspecified forearm
  • M65.24 - Calcific tendinitis, hand
  • M65.241 - Calcific tendinitis, right hand
  • M65.242 - Calcific tendinitis, left hand
  • M65.249 - Calcific tendinitis, unspecified hand
  • M65.25 - Calcific tendinitis, thigh
  • M65.251 - Calcific tendinitis, right thigh
  • M65.252 - Calcific tendinitis, left thigh
  • M65.259 - Calcific tendinitis, unspecified thigh
  • M65.26 - Calcific tendinitis, lower leg
  • M65.261 - Calcific tendinitis, right lower leg
  • M65.262 - Calcific tendinitis, left lower leg
  • M65.269 - Calcific tendinitis, unspecified lower leg
  • M65.27 - Calcific tendinitis, ankle and foot
  • M65.271 - Calcific tendinitis, right ankle and foot
  • M65.272 - Calcific tendinitis, left ankle and foot
  • M65.279 - Calcific tendinitis, unspecified ankle and foot
  • M65.28 - Calcific tendinitis, other site
  • M65.29 - Calcific tendinitis, multiple sites
  • M65.3 - Trigger finger
  • M65.30 - Trigger finger, unspecified finger
  • M65.31 - Trigger thumb
  • M65.311 - Trigger thumb, right thumb
  • M65.312 - Trigger thumb, left thumb
  • M65.319 - Trigger thumb, unspecified thumb
  • M65.32 - Trigger finger, index finger
  • M65.321 - Trigger finger, right index finger
  • M65.322 - Trigger finger, left index finger
  • M65.329 - Trigger finger, unspecified index finger
  • M65.33 - Trigger finger, middle finger
  • M65.331 - Trigger finger, right middle finger
  • M65.332 - Trigger finger, left middle finger
  • M65.339 - Trigger finger, unspecified middle finger
  • M65.34 - Trigger finger, ring finger
  • M65.341 - Trigger finger, right ring finger
  • M65.342 - Trigger finger, left ring finger
  • M65.349 - Trigger finger, unspecified ring finger
  • M65.35 - Trigger finger, little finger
  • M65.351 - Trigger finger, right little finger
  • M65.352 - Trigger finger, left little finger
  • M65.359 - Trigger finger, unspecified little finger
  • M65.4 - Radial styloid tenosynovitis [de Quervain]
  • M65.8 - Other synovitis and tenosynovitis
  • M65.80 - Other synovitis and tenosynovitis, unspecified site
  • M65.81 - Other synovitis and tenosynovitis, shoulder
  • M65.811 - Other synovitis and tenosynovitis, right shoulder
  • M65.812 - Other synovitis and tenosynovitis, left shoulder
  • M65.819 - Other synovitis and tenosynovitis, unspecified shoulder
  • M65.82 - Other synovitis and tenosynovitis, upper arm
  • M65.821 - Other synovitis and tenosynovitis, right upper arm
  • M65.822 - Other synovitis and tenosynovitis, left upper arm
  • M65.829 - Other synovitis and tenosynovitis, unspecified upper arm
  • M65.83 - Other synovitis and tenosynovitis, forearm
  • M65.831 - Other synovitis and tenosynovitis, right forearm
  • M65.832 - Other synovitis and tenosynovitis, left forearm
  • M65.839 - Other synovitis and tenosynovitis, unspecified forearm
  • M65.84 - Other synovitis and tenosynovitis, hand
  • M65.841 - Other synovitis and tenosynovitis, right hand
  • M65.842 - Other synovitis and tenosynovitis, left hand
  • M65.849 - Other synovitis and tenosynovitis, unspecified hand
  • M65.85 - Other synovitis and tenosynovitis, thigh
  • M65.851 - Other synovitis and tenosynovitis, right thigh
  • M65.852 - Other synovitis and tenosynovitis, left thigh
  • M65.859 - Other synovitis and tenosynovitis, unspecified thigh
  • M65.86 - Other synovitis and tenosynovitis, lower leg
  • M65.861 - Other synovitis and tenosynovitis, right lower leg
  • M65.862 - Other synovitis and tenosynovitis, left lower leg
  • M65.869 - Other synovitis and tenosynovitis, unspecified lower leg
  • M65.87 - Other synovitis and tenosynovitis, ankle and foot
  • M65.871 - Other synovitis and tenosynovitis, right ankle and foot
  • M65.872 - Other synovitis and tenosynovitis, left ankle and foot
  • M65.879 - Other synovitis and tenosynovitis, unspecified ankle and foot
  • M65.88 - Other synovitis and tenosynovitis, other site
  • M65.89 - Other synovitis and tenosynovitis, multiple sites
  • M65.9 - ... unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code M65:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • chronic crepitant synovitis of hand and wrist M70.0
  • current injury - see injury of ligament or tendon by body region
  • soft tissue disorders related to use, overuse and pressure M70

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Disorders of synovium and tendon (M65-M67)
      • Synovitis and tenosynovitis (M65)

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


Arthritis

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


[Learn More]

Connective Tissue Disorders

Your connective tissue supports many different parts of your body, such as your skin, eyes, and heart. It is like a "cellular glue" that gives your body parts their shape and helps keep them strong. It also helps some of your tissues do their work. It is made of many kinds of proteins. Cartilage and fat are types of connective tissue.

Over 200 disorders that impact connective tissue. There are different types:

  • Genetic disorders, such as Ehlers-Danlos syndrome, Marfan syndrome, and osteogenesis imperfecta
  • Autoimmune disorders, such as lupus and scleroderma
  • Cancers, like some types of soft tissue sarcoma

Each disorder has its own symptoms and needs different treatment.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More]