M22Non-billableSave
M22 - Disorder of patella
ICD-10-CM Chapter 13: Diseases of the musculoskeletal system and connective tissue · M20-M25 Other joint disorders (M20-M25) · Top-level category · FY2027
Coding Guidance
M22 is a non-billable heading. Report one of the 7 more specific codes below.
Includes, Excludes and Coding Notes
Excludes 2 — Not Included HereFrom M22
Not part of this code; report both codes when the patient has both conditions.
- traumatic dislocation of patella (S83.0-)
Excludes 2 — Not Included HereFrom M20-M25 Other joint disorders (M20-M25)
Not part of this code; report both codes when the patient has both conditions.
- joints of the spine (M40-M54)
Excludes 2 — Not Included HereFrom Chapter M00-M99
Not part of this code; report both codes when the patient has both conditions.
- 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)
NotesFrom Chapter M00-M99
Instructional notes from the ICD-10-CM tabular list.
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
More Specific Codes (7)
Related condition guides
Documentation requirements, coding pitfalls and FAQs for conditions coded with M22.
Chapter Information
Chapter 13: Diseases of the musculoskeletal system and connective tissue
Range: M00-M99
View full chapterRelated ICD-10 Codes
More specific codes for M22
Other categories in this chapter
Codes at the same level as M22
- Pyogenic arthritisM00
- Direct infections of joint in infectious and parasitic diseases classified elsewhereM01
- Postinfective and reactive arthropathiesM02
- Autoinflammatory syndromesM04
- Rheumatoid arthritis with rheumatoid factorM05
- Other rheumatoid arthritisM06
- Enteropathic arthropathiesM07
- Juvenile arthritisM08
- GoutM10
- Other crystal arthropathiesM11
- Other and unspecified arthropathyM12
- Other arthritisM13
- Arthropathies in other diseases classified elsewhereM14
- PolyosteoarthritisM15
- Osteoarthritis of hipM16
- Osteoarthritis of kneeM17
- Osteoarthritis of first carpometacarpal jointM18
- Other and unspecified osteoarthritisM19
- Chronic goutM1A
- Acquired deformities of fingers and toesM20
- Other acquired deformities of limbsM21
- Internal derangement of kneeM23
- Other specific joint derangementsM24
- Other joint disorder, not elsewhere classifiedM25
- Dentofacial anomalies [including malocclusion]M26
- Other diseases of jawsM27
- Polyarteritis nodosa and related conditionsM30
- Other necrotizing vasculopathiesM31
- Systemic lupus erythematosus (SLE)M32
- DermatopolymyositisM33
- Systemic sclerosis [scleroderma]M34
- Other systemic involvement of connective tissueM35
- Systemic disorders of connective tissue in diseases classified elsewhereM36
- Kyphosis and lordosisM40
- ScoliosisM41
- Spinal osteochondrosisM42
- Other deforming dorsopathiesM43
- Ankylosing spondylitisM45
- Other inflammatory spondylopathiesM46
- SpondylosisM47
38 more in this chapter.