M13 Other arthritis

Non-billable header with 3 child codes.

Excludes1 (never code together)

• arthrosis (M15-M19)
• osteoarthritis (M15-M19)

Applies from M13 Other arthritis

Excludes1 (never code together)

• arthrosis (M15-M19)
• osteoarthritis (M15-M19)

Codes under M13

• M13.0 Polyarthritis, unspecified
• M13.1 Monoarthritis, not elsewhere classified
• M13.8 Other specified arthritis

Nearby codes

• M13 Other arthritis (this code)
• M13.0 Polyarthritis, unspecified
• M13.1 Monoarthritis, not elsewhere classified
• M13.10 Monoarthritis, not elsewhere classified, unspecified site
• M13.11 Monoarthritis, not elsewhere classified, shoulder
• M13.111 Monoarthritis, not elsewhere classified, right shoulder