M14.661 Charcôt's joint, right knee

Billable ICD-10-CM code, FY2026.

Applies from M14 Arthropathies in other diseases classified elsewhere

Excludes1 (never code together)

• arthropathy in:
• diabetes mellitus (E08-E13 with .61-)
• hematological disorders (M36.2-M36.3)
• hypersensitivity reactions (M36.4)
• neoplastic disease (M36.1)
• neurosyphillis (A52.16)
• sarcoidosis (D86.86)
• enteropathic arthropathies (M07.-)
• juvenile psoriatic arthropathy (L40.54)
• lipoid dermatoarthritis (E78.81)

Applies from M14.6 Charcôt's joint

Applicable to

• Neuropathic arthropathy

Excludes1 (never code together)

• Charcôt's joint in diabetes mellitus (E08-E13 with .610)
• Charcôt's joint in tabes dorsalis (A52.16)

MS-DRG index

Defines the logic of DRG(s) 553-554 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 713.5 Arthropathy associated with neurological disorders (approximate)

Code annotations containing back-references to M14.661

Back-references to M14

• Type 2 Excludes: M36 Systemic disorders of connective tissue in diseases classified elsewhere ("arthropathies in diseases classified elsewhere (M14.-)")

Nearby codes

• M14.65 Charcot's joint, hip
• M14.651 Charcot's joint, right hip
• M14.652 Charcot's joint, left hip
• M14.659 Charcot's joint, unspecified hip
• M14.66 Charcot's joint, knee
• M14.661 Charcot's joint, right knee (this code)
• M14.662 Charcot's joint, left knee
• M14.669 Charcot's joint, unspecified knee
• M14.67 Charcot's joint, ankle and foot
• M14.671 Charcot's joint, right ankle and foot
• M14.672 Charcot's joint, left ankle and foot