ICD-10-CM 2027
ICD-10 code for intercostal mononeuropathy
From the official ICD-10-CM alphabetic index entry “Mononeuropathy › intercostal”. Page updated September 29, 2026.
About coding intercostal mononeuropathy
The ICD-10-CM code for intercostal mononeuropathy is G58.0 (Intercostal neuropathy).
Within G58 (other mononeuropathies), G58.0 is specifically for intercostal neuropathy. Related codes cover mononeuritis multiplex (G58.7), other specified mononeuropathies (G58.8) and mononeuropathy, unspecified (G58.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 073 (Cranial and Peripheral Nerve Disorders with MCC, relative weight 1.5779) and DRG 074 (Cranial and Peripheral Nerve Disorders without MCC, relative weight 1.0173), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about intercostal mononeuropathy ICD-10 codes
What is the ICD-10 code for intercostal mononeuropathy?
- G58.0 — Intercostal neuropathy.
Is G58.0 billable?
- Yes. G58.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G58.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G58.0 as a principal diagnosis.
Is G58.0 a CC or MCC?
- No. G58.0 is neither a CC nor an MCC under MS-DRG v44.0.