G61.89 ICD-10-CM Code: Other inflammatory polyneuropathies
G61.89 is the authoritative medical code for Other inflammatory polyneuropathies. This classification is used in medical billing and clinical recording to specify the clinical criteria for other inflammatory polyneuropathies (ICD-10-CM G61.89), ensuring healthcare documentation aligns with current federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 073 — CRANIAL AND PERIPHERAL NERVE DISORDERS WITH MCC (MDC 01)
- MS-DRG 074 — CRANIAL AND PERIPHERAL NERVE DISORDERS WITHOUT MCC (MDC 01)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for G61.89 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.
- neuralgia NOS (M79.2)
- neuritis NOS (M79.2)
- peripheral neuritis in pregnancy (O26.82-)
- radiculitis NOS (M54.10)
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with G61.89?
Per official ICD-10-CM Excludes1 instructions, G61.89 must not be reported together with: neuralgia NOS (M79.2); neuritis NOS (M79.2); peripheral neuritis in pregnancy (O26.82-); radiculitis NOS (M54.10).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to G61.89 in its code family, with their registry titles.
Indexed Clinical Terms (1)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Polyneuropathy (peripheral), inflammatory, specified NEC