G59 is the authoritative medical code for Mononeuropathy in diseases classified elsewhere. This classification is used in medical billing and clinical recording to specify the clinical criteria for mononeuropathy in diseases classified elsewhere (ICD-10-CM G59), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Mononeuropathy in diseases classified elsewhere is a billable ICD-10-CM diagnosis code G59. Excludes1 (not coded here): diabetic mononeuropathy (E08-E13 with .41); syphilitic nerve paralysis A52.19; syphilitic neuritis A52.15; tuberculous mononeuropathy A17.83; 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-. Code first: underlying disease.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for G59 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- diabetic mononeuropathy (E08-E13 with .41)
- syphilitic nerve paralysis A52.19
- syphilitic neuritis A52.15
- tuberculous mononeuropathy A17.83
- 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-
Code First
Underlying conditions that must be sequenced before this code.
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with G59?
Per Excludes1 instructions, G59 must not be reported with: diabetic mononeuropathy (E08-E13 with .41); syphilitic nerve paralysis (A52.19); syphilitic neuritis (A52.15); tuberculous mononeuropathy (A17.83).
Does G59 need to be sequenced after another code?
Yes. Code first: underlying disease.
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code G55
Nerve root and plexus compressions in diseases classified elsewhere
ICD Code G63
Polyneuropathy in diseases classified elsewhere