ICD-10-CM 2027
ICD-10 code for sacrococcygeal region radiculopathy
From the official ICD-10-CM alphabetic index entry “Radiculopathy › sacrococcygeal region”. Page updated September 29, 2026.
About coding sacrococcygeal region radiculopathy
The ICD-10-CM code for sacrococcygeal region radiculopathy is M54.18 (Radiculopathy, sacral and sacrococcygeal region).
Within M54.1 (radiculopathy), M54.18 is specifically for radiculopathy, sacral and sacrococcygeal region. Related codes cover site unspecified (M54.10), occipito-atlanto-axial region (M54.11), cervical region (M54.12), cervicothoracic region (M54.13), thoracic region (M54.14), thoracolumbar region (M54.15), lumbar region (M54.16) and lumbosacral region (M54.17).
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 sacrococcygeal region radiculopathy ICD-10 codes
What is the ICD-10 code for sacrococcygeal region radiculopathy?
- M54.18 — Radiculopathy, sacral and sacrococcygeal region.
Is M54.18 billable?
- Yes. M54.18 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M54.18 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M54.18 as a principal diagnosis.
Is M54.18 a CC or MCC?
- No. M54.18 is neither a CC nor an MCC under MS-DRG v44.0.