Sic.-Medical codes
CD‑9 is over 30 years old, contains outdated terms, and cannot accommodate new codes.
ICD‑10 aligns with current medical practice and allows unlimited expansion.
ICD‑10 includes:
Laterality (right, left, bilateral)
Severity
Episode of care (initial, subsequent, sequela)
Combination codes that capture multiple clinical concepts in one code
ICD‑9 lacks these features.