G57

Non-Billable
ChapterG00–G99
Rankcategory
Official Description

Mononeuropathies of lower limb

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 6: Diseases of the Nervous System (G00-G99).

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • 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)

G50-G59 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • 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-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • current traumatic nerve disorder - see nerve injury by body region

Clinical Hierarchy

BillableHas subcodes
CH6Diseases of the nervous system (G00-G99)
G50-G59Nerve, nerve root and plexus disorders (G50-G59)
G57Mononeuropathies of lower limbNot billable
G57.0Lesion of sciatic nerveSubcodes
G57.1Meralgia parestheticaSubcodes
G57.2Lesion of femoral nerveSubcodes
G57.3Lesion of lateral popliteal nerveSubcodes
G57.4Lesion of medial popliteal nerveSubcodes
G57.5Tarsal tunnel syndromeSubcodes
G57.6Lesion of plantar nerveSubcodes
G57.7Causalgia of lower limbSubcodes
G57.8Other specified mononeuropathies of lower limbSubcodes
G57.9Unspecified mononeuropathy of lower limbSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G57:

blockG50-G59
Nerve, nerve root and plexus disorders (G50-G59)
View context instructions
chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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