All ICD10 Codes

G56

Non-Billable
ChapterG00–G99
Rankcategory
Official Description

Mononeuropathies of upper limb

Use a more specific code (0 billable, 7 non-billable)
G56.0Carpal tunnel syndromehas subcodesG56.1Other lesions of median nervehas subcodesG56.2Lesion of ulnar nervehas subcodesG56.3Lesion of radial nervehas subcodesG56.4Causalgia of upper limbhas subcodesG56.8Other specified mononeuropathies of upper limbhas subcodesG56.9Unspecified mononeuropathy of upper limbhas subcodes
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)
G56Mononeuropathies of upper limbNot billable
G56.0Carpal tunnel syndromeSubcodes
G56.1Other lesions of median nerveSubcodes
G56.2Lesion of ulnar nerveSubcodes
G56.3Lesion of radial nerveSubcodes
G56.4Causalgia of upper limbSubcodes
G56.8Other specified mononeuropathies of upper limbSubcodes
G56.9Unspecified mononeuropathy of upper limbSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G56:

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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