ICD-10-CM › M00-M99 › M60-M63 › M63.8 Disorders of muscle in diseases... › M63.86
Disorders of muscle in diseases classified elsewhere, lower leg
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 3 more specific codes instead:
What has happened to this code
Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2012 Added to the draft code set draft Disorders of muscle in diseases classified elsewhere, lower leg
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from M63 Disorders of muscle in diseases classified elsewhere
Excludes1 - never coded here
- myopathy in cysticercosis (B69.81)
- myopathy in endocrine diseases (G73.7)
- myopathy in metabolic diseases (G73.7)
- myopathy in sarcoidosis (D86.87)
- myopathy in secondary syphilis (A51.49)
- myopathy in syphilis (late) (A52.78)
- myopathy in toxoplasmosis (B58.82)
- myopathy in tuberculosis (A18.09)
Code first
- underlying disease, such as:
- leprosy (A30.-)
- neoplasm (C49.-, C79.89, D21.-, D48.1-)
- schistosomiasis (B65.-)
- trichinellosis (B75)
Inherited from the M60-M63 section Disorders of muscles (M60-M63)
Excludes1 - never coded here
- dermatopolymyositis (M33.-)
- myopathy in amyloidosis (E85.-)
- myopathy in polyarteritis nodosa (M30.0)
- myopathy in rheumatoid arthritis (M05.32)
- myopathy in scleroderma (M34.-)
- myopathy in Sjögren's syndrome (M35.03)
- myopathy in systemic lupus erythematosus (M32.-)
Excludes2 - not included here
- muscular dystrophies and myopathies (G71-G72)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Lepra
- Flukes NEC
- Bilharziasis
- Trematodiasis
- Mycobacteriosis
- Hansen's disease
- Urine > blood in
- Blood > flukes NEC
- Blood > in > urine
- Hematuria > endemic
- Hematuria > tropical
- Trematode infestation
- Flukes NEC > blood NEC
- Parasitism > specified
- Granuloma > Schistosoma
- Disease, diseased > fluke
- Disease, diseased > muscle
- Infestation > trematode NEC
- Disease, diseased > Hansen's
- Disease, diseased > fascia NEC
- Infestation > fluke > blood NOS
- Disorder > muscle > in trichinellosis
- Mycobacterium, mycobacterial > leprae
- Infection, infected, infective > fluke
- Infestation > helminth > intestinal > fluke
- Disease, diseased > parasitic > specified type
- Infection, infected, infective > trematode NEC
- Infestation > helminth > intestinal > diphyllobothriasis
- Arthritis, arthritic > due to or associated with > leprosy
- Infection, infected, infective > Mycobacterium, mycobacterial
- Infestation > helminth > intestinal > specified > cestode NEC
- Leprosy > with muscle disorder > lower leg
- Schistosomiasis > with muscle disorder > lower leg
- Trichinellosis, trichiniasis, trichinelliasis, trichinosis > with muscle disorder > lower leg
Codes in the same group
| Code | Description | Status |
|---|---|---|
| M63.80 | Disorders of muscle in diseases classified elsewhere, unspecified site | Valid |
| M63.81 | Disorders of muscle in diseases classified elsewhere, shoulder | Not billable |
| M63.82 | Disorders of muscle in diseases classified elsewhere, upper arm | Not billable |
| M63.83 | Disorders of muscle in diseases classified elsewhere, forearm | Not billable |
| M63.84 | Disorders of muscle in diseases classified elsewhere, hand | Not billable |
| M63.85 | Disorders of muscle in diseases classified elsewhere, thigh | Not billable |
| M63.87 | Disorders of muscle in diseases classified elsewhere, ankle and foot | Not billable |
| M63.88 | Disorders of muscle in diseases classified elsewhere, other site | Valid |
| M63.89 | Disorders of muscle in diseases classified elsewhere, multiple sites | Valid |