M65.8
Non-billableOther synovitis and tenosynovitis
Other synovitis and tenosynovitis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Child Codes (10)
M65.80Other synovitis and tenosynovitis, unspecified site
M65.81Other synovitis and tenosynovitis, shoulder
M65.82Other synovitis and tenosynovitis, upper arm
M65.83Other synovitis and tenosynovitis, forearm
M65.84Other synovitis and tenosynovitis, hand
M65.85Other synovitis and tenosynovitis, thigh
M65.86Other synovitis and tenosynovitis, lower leg
M65.87Other synovitis and tenosynovitis, ankle and foot
M65.88Other synovitis and tenosynovitis, other site
M65.89Other synovitis and tenosynovitis, multiple sites
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code M65.8?
ICD-10-CM code M65.8 represents "Other synovitis and tenosynovitis". It is a non-billable header code — use a more specific child code for billing purposes.
Is M65.8 a billable code?
No, M65.8 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 10 child codes under M65.8.
What chapter is M65.8 in?
M65.8 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M65.8?
M65.8 has Excludes1 notes indicating codes that cannot be used together with it, including: 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.-).
What are the subcategories under M65.8?
M65.8 has 10 child codes, including: M65.80 (Other synovitis and tenosynovitis, unspecified site), M65.81 (Other synovitis and tenosynovitis, shoulder), M65.82 (Other synovitis and tenosynovitis, upper arm), M65.83 (Other synovitis and tenosynovitis, forearm), and 6 more.
What are the UMLS CUIs for M65.8?
M65.8 is linked to 1 UMLS Concept Unique Identifier: C0029856. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.