M46.98

Billable

Unspecified inflammatory spondylopathy, sacral and sacrococcygeal region

HCC Category Mapping

V24HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.307

ESRDHCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.000

What This Code Means

Inflammation of the spine in the sacral and sacrococcygeal region (base of spine) without a specific identified cause.

Coding Tips

•Sacroiliitis is often associated with inflammatory spondylopathies; if sacroiliitis is specifically documented, consider M46.1 codes
•Verify involvement includes sacral region; sacrococcygeal involvement alone is less common

Clinical Significance

Unspecified inflammatory spondylopathy in the sacral region indicates active spinal inflammation requiring evaluation for underlying inflammatory conditions like ankylosing spondylitis or other seronegative spondyloarthropathies. Early diagnosis and treatment are crucial to prevent structural damage.

Documentation Requirements

✓Clinical evidence of sacral/sacrococcygeal spine inflammation
✓Imaging studies showing inflammatory changes (MRI preferred)
✓Laboratory markers of inflammation if present (ESR, CRP)
✓Documentation that specific spondylopathy type cannot be determined
✓Assessment for HLA-B27 and other inflammatory markers
✓Response to anti-inflammatory treatments
✓Functional assessment and pain levels

Commonly Confused Codes

M45 — Ankylosing spondylitis (use when AS specifically diagnosed)M46.1 — Sacroiliitis not elsewhere classified (more specific for sacroiliac joint)M53.3 — Sacrococcygeal disorders not elsewhere classified (use for non-inflammatory conditions)M46.99 — Unspecified inflammatory spondylopathy multiple sites (use when multiple spinal levels involved)

Code Hierarchy

└M46Other inflammatory spondylopathies └M46.9Unspecified inflammatory spondylopathy └M46.98Unspecified inflammatory spondylopathy, sacral and sacrococcygeal region

└M46.98Unspecified inflammatory spondylopathy, sacral and sacrococcygeal region