2026 ICD-10-CM Diagnosis Code M70.039Crepitant synovitis (acute) (chronic), unspecified wrist
ICD-10-CM Codes›M00–M99›M70-M79›M70
- Billable — Valid for Submission
- Not Chronic
M70.039 is a billable ICD-10-CM diagnosis code for crepitant synovitis (acute) (chronic), unspecified wrist. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 557 through 558. Coders also document this condition as chronic crepitant synovitis of hand and wrist. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Tendon and synovial disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Chronic crepitant synovitis of hand and wrist
- Chronic crepitant synovitis of wrist
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Wrist Injuries and Disorders
Your wrist connects your hand to your forearm. It is not one big joint; it has several small joints. This makes it flexible and allows you to move your hand in different ways. The wrist has two big forearm bones and eight small bones known as carpals. It also has tendons and ligaments, which are connective tissues.
The full article covers:
- What are the types of wrist injuries and disorders?
- Who is at risk for wrist injuries and disorders?
- What are the symptoms of wrist injuries and disorders?
- How are wrist injuries and disorders diagnosed?
- What are the treatments for wrist injuries and disorders?
- Can wrist injuries and disorders be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M70.039 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M70.039Overview
Is M70.039 (Crepitant synovitis (acute) (chronic), wrist) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report crepitant synovitis (acute) (chronic), unspecified wrist on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does M70.039 group to?
When crepitant synovitis (acute) (chronic), unspecified wrist is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 558, with relative weights from 0.8932 to 1.4869 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of M70.039?
Under the General Equivalence Mappings, crepitant synovitis (acute) (chronic), unspecified wrist converts to ICD-9-CM 727.2 (occupational bursitis). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
