DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

G57 Mononeuropathies of lower limb

  • Header · not billable

G57 is not billable. The category heads 40 billable codes in FY2027, grouped under 10 subdivisions.

Index → code

  • Meralgia paresthetica → G57.1-
  • Morton's metatarsalgia (neuralgia)(neuroma) (syndrome) → G57.6-
  • Neuromaplantar → G57.6-

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G50-G59 Nerve, nerve root and plexus disorders (G50-G59)
  3. G57 Mononeuropathies of lower limb
Billable codes
40
Subdivisions
10
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
69

Codes in G57

  1. G57.0
    Lesion of sciatic nerve
    Header
    Excludes1 1, Excludes2 1

    Excludes1

    • sciatica NOS (M54.3-) M54.3

    Excludes2

    • sciatica attributed to intervertebral disc disorder (M51.1.-) M51.1
  2. G57.00
    Lesion of sciatic nerve, unspecified lower limb
    Billable
  3. G57.01
    Lesion of sciatic nerve, right lower limb
    Billable
  4. G57.02
    Lesion of sciatic nerve, left lower limb
    Billable
  5. G57.03
    Lesion of sciatic nerve, bilateral lower limbs
    Billable
  6. G57.1
    Meralgia paresthetica
    Header
    Inclusion terms 1

    Inclusion terms

    • Lateral cutaneous nerve of thigh syndrome
  7. G57.10
    Meralgia paresthetica, unspecified lower limb
    Billable
  8. G57.11
    Meralgia paresthetica, right lower limb
    Billable
  9. G57.12
    Meralgia paresthetica, left lower limb
    Billable
  10. G57.13
    Meralgia paresthetica, bilateral lower limbs
    Billable
  11. G57.2
    Lesion of femoral nerve
    Header
  12. G57.20
    Lesion of femoral nerve, unspecified lower limb
    Billable
  13. G57.21
    Lesion of femoral nerve, right lower limb
    Billable
  14. G57.22
    Lesion of femoral nerve, left lower limb
    Billable
  15. G57.23
    Lesion of femoral nerve, bilateral lower limbs
    Billable
  16. G57.3
    Lesion of lateral popliteal nerve
    Header
    Inclusion terms 1

    Inclusion terms

    • Peroneal nerve palsy
  17. G57.30
    Lesion of lateral popliteal nerve, unspecified lower limb
    Billable
  18. G57.31
    Lesion of lateral popliteal nerve, right lower limb
    Billable
  19. G57.32
    Lesion of lateral popliteal nerve, left lower limb
    Billable
  20. G57.33
    Lesion of lateral popliteal nerve, bilateral lower limbs
    Billable
  21. G57.4
    Lesion of medial popliteal nerve
    Header
  22. G57.40
    Lesion of medial popliteal nerve, unspecified lower limb
    Billable
  23. G57.41
    Lesion of medial popliteal nerve, right lower limb
    Billable
  24. G57.42
    Lesion of medial popliteal nerve, left lower limb
    Billable
  25. G57.43
    Lesion of medial popliteal nerve, bilateral lower limbs
    Billable
  26. G57.5
    Tarsal tunnel syndrome
    Header
  27. G57.50
    Tarsal tunnel syndrome, unspecified lower limb
    Billable
  28. G57.51
    Tarsal tunnel syndrome, right lower limb
    Billable
  29. G57.52
    Tarsal tunnel syndrome, left lower limb
    Billable
  30. G57.53
    Tarsal tunnel syndrome, bilateral lower limbs
    Billable
  31. G57.6
    Lesion of plantar nerve
    Header
    Inclusion terms 1

    Inclusion terms

    • Morton's metatarsalgia
  32. G57.60
    Lesion of plantar nerve, unspecified lower limb
    Billable
  33. G57.61
    Lesion of plantar nerve, right lower limb
    Billable
  34. G57.62
    Lesion of plantar nerve, left lower limb
    Billable
  35. G57.63
    Lesion of plantar nerve, bilateral lower limbs
    Billable
  36. G57.7
    Causalgia of lower limb
    Header
    Inclusion terms 1, Excludes1 5

    Inclusion terms

    • Complex regional pain syndrome II of lower limb

    Excludes1

    • complex regional pain syndrome I of lower limb (G90.52-) G90.52
    • complex regional pain syndrome I of upper limb (G90.51-) G90.51
    • complex regional pain syndrome II of upper limb (G56.4-) G56.4
    • reflex sympathetic dystrophy of lower limb (G90.52-) G90.52
    • reflex sympathetic dystrophy of upper limb (G90.51-) G90.51
  37. G57.70
    Causalgia of unspecified lower limb
    Billable
  38. G57.71
    Causalgia of right lower limb
    Billable
  39. G57.72
    Causalgia of left lower limb
    Billable
  40. G57.73
    Causalgia of bilateral lower limbs
    Billable
  41. G57.8
    Other specified mononeuropathies of lower limb
    Header
    Inclusion terms 1

    Inclusion terms

    • Interdigital neuroma of lower limb
  42. G57.80
    Other specified mononeuropathies of unspecified lower limb
    Billable
  43. G57.81
    Other specified mononeuropathies of right lower limb
    Billable
  44. G57.82
    Other specified mononeuropathies of left lower limb
    Billable
  45. G57.83
    Other specified mononeuropathies of bilateral lower limbs
    Billable
  46. G57.9
    Unspecified mononeuropathy of lower limb
    Header
  47. G57.90
    Unspecified mononeuropathy of unspecified lower limb
    Billable
  48. G57.91
    Unspecified mononeuropathy of right lower limb
    Billable
  49. G57.92
    Unspecified mononeuropathy of left lower limb
    Billable
  50. G57.93
    Unspecified mononeuropathy of bilateral lower limbs
    Billable

Sources of each column.

Instructions

At G57

Excludes1

  • current traumatic nerve disorder - see nerve injury by body region

Notes that also apply

Block G50-G59 instructions (Excludes1 5): printed on the block page.

Chapter 6 instructions (Excludes2 8): printed on the chapter 6 page.

Index entries

  • Meralgia paresthetica → G57.1-
  • Morton's metatarsalgia (neuralgia)(neuroma) (syndrome) → G57.6-
  • Lesion(s) (nontraumatic)sciatic nerve → G57.0-
  • Mononeuritissciatic nerve → G57.0-
  • Neuropathy, neuropathicsciatic → G57.0-
  • Paralysis, paralytic (complete) (incomplete)sciatic nerve → G57.0-
  • ParesisBernhardt's → G57.1-
  • ParesthesiaBernhardt → G57.1-
  • Mononeuritisfemoral nerve → G57.2-
  • Neuronitisascending (acute) → G57.2-
  • Palsyperoneal nerve (acute) (tardy) → G57.3-
  • Paralysis, paralytic (complete) (incomplete)peroneal (nerve) → G57.3-
  • Paralysis, paralytic (complete) (incomplete)popliteal nerve → G57.3-
  • Mononeuritismedial popliteal nerve → G57.4-
  • Mononeuritistibial nerve → G57.4-
  • Mononeuritisposterior tibial nerve → G57.5-
  • Syndrometarsal tunnel → G57.5-
  • Metatarsalgiaanterior → G57.6-
  • MetatarsalgiaMorton's → G57.6-
  • Mononeuritisplantar nerve → G57.6-
  • Neuralgia, neuralgic (acute)Morton's → G57.6-
  • Neuromadigital (toe) → G57.6-
  • NeuromaMorton's → G57.6-
  • Neuromaplantar → G57.6-
  • Neuropathy, neuropathicplantar nerves → G57.6-
  • Paralysis, paralytic (complete) (incomplete)plantar nerve(s) → G57.6-
  • Paralysis, paralytic (complete) (incomplete)toe → G57.6-
  • Causalgia (upper limb)lower limb → G57.7-
  • Lesion(s) (nontraumatic)iliohypogastric nerve → G57.8-
  • Lesion(s) (nontraumatic)obturator nerve → G57.8-
  • Lesion(s) (nontraumatic)saphenous nerve → G57.8-
  • Mononeuropathyilioinguinal nerve → G57.8-
  • Mononeuropathyobturator nerve → G57.8-
  • Mononeuropathysaphenous nerve → G57.8-
  • Neuromaintermetatarsal → G57.8-
  • Mononeuritislower limb → G57.9-
  • Mononeuropathylower limb → G57.9-
  • Neuritis (rheumatoid)ilioinguinal (nerve) → G57.9-
  • Neuropathy, neuropathicleg NEC → G57.9-
  • Neuropathy, neuropathiclower extremity → G57.9-

29 more, longer entries are not listed; the search box finds them by word.

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