M12.46 Intermittent hydrarthrosis, knee

Non-billable header with 3 child codes.

Applies from M12 Other and unspecified arthropathy

Excludes1 (never code together)

• arthrosis (M15-M19)
• cricoarytenoid arthropathy (J38.7)

Codes under M12.46

• M12.461 Intermittent hydrarthrosis, right knee
• M12.462 Intermittent hydrarthrosis, left knee
• M12.469 Intermittent hydrarthrosis, unspecified knee

Code annotations containing back-references to M12.46

Back-references to M12.4

• Type 1 Excludes: M25.4 Effusion of joint ("intermittent hydrarthrosis (M12.4-)")

Diagnosis Index entries for M12.46

• Hydrarthrosis › intermittent › knee

Nearby codes

• M12.449 Intermittent hydrarthrosis, unspecified hand
• M12.45 Intermittent hydrarthrosis, hip
• M12.451 Intermittent hydrarthrosis, right hip
• M12.452 Intermittent hydrarthrosis, left hip
• M12.459 Intermittent hydrarthrosis, unspecified hip
• M12.46 Intermittent hydrarthrosis, knee (this code)
• M12.461 Intermittent hydrarthrosis, right knee
• M12.462 Intermittent hydrarthrosis, left knee
• M12.469 Intermittent hydrarthrosis, unspecified knee
• M12.47 Intermittent hydrarthrosis, ankle and foot
• M12.471 Intermittent hydrarthrosis, right ankle and foot