M99.78
BillableConnective tissue and disc stenosis of intervertebral foramina of rib cage
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Narrowing of the nerve passages in the spine due to connective tissue and disc problems in the rib cage area, which may affect breathing or cause chest wall pain.
Coding Tips
- •This is a specific code for rib cage region; ensure documentation clearly indicates this anatomical location
- •Differentiate from thoracic region codes (M99.82) by confirming rib cage involvement is documented
Code Hierarchy
└M99Biomechanical lesions, not elsewhere classified└M99.7Connective tissue and disc stenosis of intervertebral foramina└M99.78Connective tissue and disc stenosis of intervertebral foramina of rib cage
└M99.78Connective tissue and disc stenosis of intervertebral foramina of rib cage