ICD-10-CM › G00-G99 › G50-G59 › G57 Mononeuropathies of lower limb › G57.9
Unspecified mononeuropathy of lower limb
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 4 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 Unspecified mononeuropathy of lower limb
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 G57 Mononeuropathies of lower limb
Excludes1 - never coded here
- current traumatic nerve disorder - see nerve injury by body region
Inherited from the G50-G59 section Nerve, nerve root and plexus disorders (G50-G59)
Excludes1 - never coded here
- current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region
- neuralgia NOS (M79.2)
- neuritis NOS (M79.2)
- peripheral neuritis in pregnancy (O26.82-)
- radiculitis NOS (M54.1-)
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.
- Vasospasm
- Angiospasm
- Neurophthisis
- Neurosclerosis
- Endoperineuritis
- Irritation > nerve
- Compression > nerve
- Change > trophic > leg
- Vasospasm > nerve > leg
- Angiospasm > nerve > leg
- Atrophy, atrophic > nerve
- Disease, diseased > nerve
- Paralysis, paralytic > nerve
- Compression > nerve > leg NEC
- Disorder > nerve > lower limb
- Neuritis > peripheral > single
- Degeneration, degenerative > nerve
- Neuropathy, neuropathic > ischemic
- Degeneration, degenerative > Wallerian
- Inflammation, inflamed, inflammatory > nerve NEC
- Inflammation, inflamed, inflammatory > spinal > nerve
- Neuritis > ilioinguinal
- Neuroma > surgical > leg
- Mononeuritis > lower limb
- Mononeuropathy > lower limb
- Paralysis, paralytic > ankle
- Paralysis, paralytic > thigh
- Neuroma > nonneoplastic > leg
- Neuropathy, neuropathic > leg NEC
- Paralysis, paralytic > quadriceps
- Neuroma > surgical > lower extremity
- Paralysis, paralytic > compression > leg
- Neuroma > nonneoplastic > lower extremity
- Neuropathy, neuropathic > lower extremity
- Paralysis, paralytic > abductor, lower extremity
- Paralysis, paralytic > compression > lower extremity
Codes in the same group
| Code | Description | Status |
|---|---|---|
| G57.0 | Lesion of sciatic nerve | Not billable |
| G57.1 | Meralgia paresthetica | Not billable |
| G57.2 | Lesion of femoral nerve | Not billable |
| G57.3 | Lesion of lateral popliteal nerve | Not billable |
| G57.4 | Lesion of medial popliteal nerve | Not billable |
| G57.5 | Tarsal tunnel syndrome | Not billable |
| G57.6 | Lesion of plantar nerve | Not billable |
| G57.7 | Causalgia of lower limb | Not billable |
| G57.8 | Other specified mononeuropathies of lower limb | Not billable |