Disorders of synovium and tendon
ICD-10 Codes (200)
M66M66.0M66.1M66.10M66.11M66.111M66.112M66.119M66.12M66.121M66.122M66.129M66.13M66.131M66.132M66.139M66.14M66.141M66.142M66.143M66.144M66.145M66.146M66.15M66.151M66.152M66.159M66.17M66.171M66.172M66.173M66.174M66.175M66.176M66.177M66.178M66.179M66.18M66.2M66.20M66.21M66.211M66.212M66.219M66.22M66.221M66.222M66.229M66.23M66.231M66.232M66.239M66.24M66.241M66.242M66.249M66.25M66.251M66.252M66.259M66.26M66.261M66.262M66.269M66.27M66.271M66.272M66.279M66.28M66.29M66.3M66.30M66.31M66.311M66.312M66.319M66.32M66.321M66.322M66.329M66.33M66.331M66.332M66.339M66.34M66.341M66.342M66.349M66.35M66.351M66.352M66.359M66.36M66.361M66.362M66.369M66.37M66.371M66.372M66.379M66.38M66.39M66.8M66.80M66.81M66.811M66.812M66.819M66.82M66.821M66.822M66.829M66.83M66.831M66.832M66.839M66.84M66.841M66.842M66.849M66.85M66.851M66.852M66.859M66.86M66.861M66.862M66.869M66.87M66.871M66.872M66.879M66.88M66.89M66.9M67M67.0M67.00M67.01M67.02M67.2M67.20M67.21M67.211M67.212M67.219M67.22M67.221M67.222M67.229M67.23M67.231M67.232M67.239M67.24M67.241M67.242M67.249M67.25M67.251M67.252M67.259M67.26M67.261M67.262M67.269M67.27M67.271M67.272M67.279M67.28M67.29M67.3M67.30M67.31M67.311M67.312M67.319M67.32M67.321M67.322M67.329M67.33M67.331M67.332M67.339M67.34M67.341M67.342M67.349M67.35M67.351M67.352M67.359M67.36M67.361M67.362M67.369M67.37M67.371Updates & Changes
FY 2026 Updates
Deleted Codes
No codes deleted in this range for FY 2026
No significant changes for FY 2026
This range maintains stability with current coding practices
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for M65-M67 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
The ICD-10 code range M65-M67 pertains to disorders of the synovium and tendon. This includes conditions such as synovitis, tenosynovitis, and bursitis. These codes are used to document various inflammatory and degenerative conditions affecting the synovium (the lining of the joints) and the tendons. The codes in this range are specific to the location of the disorder and, in some cases, the cause or type of the disorder.
Key Usage Points:
- •Always specify the location of the disorder for accurate coding.
- •For conditions like tenosynovitis, specify whether it's acute or chronic.
- •Use additional codes to identify any associated conditions or complications.
- •When coding for bursitis, specify the type (e.g., septic or nonseptic).
- •Remember to code first any associated underlying disease (if applicable).
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with synovitis or tenosynovitis.
- ✓When a patient presents with bursitis, regardless of the type.
- ✓When a patient has a disorder of the synovium or tendon due to a specific disease (e.g., gout).
- ✓When a patient has a postprocedural disorder of the synovium or tendon.
When NOT to Use:
- ✗When the patient's condition is not specifically a disorder of the synovium or tendon.
- ✗When the disorder is due to an injury or trauma (these are coded elsewhere).
- ✗When the patient has a disease that affects the synovium or tendon but is not a disorder of these structures.
- ✗When the patient's condition is a disorder of the muscle or bone, rather than the synovium or tendon.
Code Exclusions
Always verify exclusions with the patient's specific condition and the ICD-10 official guidelines.
Documentation Requirements
Documentation for disorders of the synovium and tendon should include the specific diagnosis, the location of the disorder, and any associated conditions or complications. The type of disorder (e.g., acute, chronic, septic) should also be documented.
Clinical Information:
- •Specific diagnosis
- •Location of the disorder
- •Type of disorder (if applicable)
- •Associated conditions or complications
- •Underlying disease (if applicable)
Supporting Evidence:
- •Clinical examination findings
- •Imaging results
- •Lab test results
- •Patient's medical history
Good Documentation Example:
Patient diagnosed with chronic tenosynovitis of the right wrist due to rheumatoid arthritis. Examination showed swelling and tenderness. Imaging confirmed inflammation of the tendon sheath.
Poor Documentation Example:
Patient has wrist pain.
Common Documentation Errors:
- âš Not specifying the location of the disorder
- âš Not documenting the type of disorder
- âš Not including associated conditions or complications
- âš Not coding first the underlying disease (if applicable)
Range Statistics
Coding Complexity
The complexity of these codes is medium because they require specific information about the type and location of the disorder, as well as any associated conditions or complications. Additionally, any underlying disease must be coded first, if applicable.
Key Factors:
- â–¸Determining the specific type of disorder
- â–¸Identifying the exact location of the disorder
- â–¸Coding any associated conditions or complications
- â–¸Coding first any underlying disease (if applicable)
Specialty Focus
These codes are commonly used in orthopedics, rheumatology, and sports medicine. They are used to document conditions affecting the joints and tendons, which are common in these specialties.
Primary Specialties:
Clinical Scenarios:
- • A patient with rheumatoid arthritis presents with chronic synovitis of the knee.
- • A patient has acute tenosynovitis of the wrist after a repetitive strain injury.
- • A patient presents with septic bursitis of the elbow due to an infection.
- • A patient has a postprocedural disorder of the synovium following knee surgery.
Resources & References
Resources for these codes include the ICD-10 official guidelines, clinical reference materials, and educational resources for coding disorders of the synovium and tendon.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- American Health Information Management Association (AHIMA) guidelines
- American Academy of Professional Coders (AAPC) guidelines
Clinical References:
- American College of Rheumatology guidelines
- American Academy of Orthopaedic Surgeons guidelines
Educational Materials:
- AAPC ICD-10 training materials
- AHIMA ICD-10 coding resources
Frequently Asked Questions
How do I code for a disorder of the synovium or tendon due to a specific disease?
You would code first for the specific disease, followed by the appropriate M65-M67 code to identify the disorder of the synovium or tendon.