Discitis, unspecified

M46.40 identifies discitis — inflammation of an intervertebral disc — when neither the specific spinal region nor the etiology is documented in the medical record.

Discitis of unspecified type involving the occipito-atlanto-axial region — the articulations between the occiput, atlas (C1), and axis (C2) — where the etiology (bacterial, viral, or aseptic) has not been documented.

Inflammation of one or more intervertebral discs in the cervical spine region, where the specific etiology has not been documented or confirmed.

Inflammation of an intervertebral disc at the cervicothoracic junction (C7-T1 region) where the etiology has not been specified as infectious, pyogenic, or otherwise classified.

Inflammation of an intervertebral disc in the thoracic spine where the underlying cause has not been specified or confirmed in the clinical documentation.

Inflammation of one or more intervertebral discs located at the thoracolumbar junction (T12–L1 transition zone), with the etiology unspecified — meaning the record does not distinguish infectious, inflammatory, or other origin.

M46.46 designates inflammation of an intervertebral disc in the lumbar region (L1–L5) where the causative organism has not been identified or specified in the clinical record.

Inflammation of an intervertebral disc at the lumbosacral junction (L5-S1 level) where the causative organism or inflammatory mechanism has not been specified in the medical record.

Inflammation of an intervertebral disc or disc space localized to the sacral or sacrococcygeal region of the spine, where the causative organism or etiology has not been specified in the clinical documentation.

Discitis at multiple spinal levels where the causative organism has not been identified or specified in the clinical documentation.