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M25.461

Billable

Effusion, right knee

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Fluid accumulation in the right knee joint, commonly causing swelling, pain, and reduced mobility in the knee.

Coding Tips

  • •Confirm right knee is documented; knee effusions are common and may be related to meniscal tears or arthritis
  • •Check if imaging studies (ultrasound, MRI) were performed to document the effusion

Code Hierarchy

└M25Other joint disorder, not elsewhere classified└M25.4Effusion of joint└M25.46Effusion, knee└M25.461Effusion, right knee
└M25.461Effusion, right knee

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