M93.1 Kienböck's disease of adults

Billable ICD-10-CM code, FY2026.

Applicable to

• Adult osteochondrosis of carpal lunates

Applies from M93 Other osteochondropathies

Excludes2 (not included here)

• osteochondrosis of spine (M42.-)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 732.8 Other specified forms of osteochondropathy (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Adult diagnoses (age 15 through 124): Age conflict edit. These diagnoses are clinically expected only in patients age 15 through 124.

Code annotations containing back-references to M93.1

Back-references to M93

• Type 1 Excludes: M87 Osteonecrosis ("osteochondropathies (M90-M93)")

Diagnosis Index entries for M93.1

• Kienböck's disease › adult
• Osteochondropathy › Kienböck's disease of adults
• Osteochondrosis › carpal (juvenile) (lunate) (scaphoid) › adult
• Osteochondrosis › Kienböck's › adult
• Osteochondrosis › lunate bone (carpal) (juvenile) › adult

Nearby codes

• M93.07 Acute on chronic slipped upper femoral epiphysis, unspecified stability (nontraumatic)
• M93.071 Acute on chronic slipped upper femoral epiphysis, unspecified stability (nontraumatic), right hip
• M93.072 Acute on chronic slipped upper femoral epiphysis, unspecified stability (nontraumatic), left hip
• M93.073 Acute on chronic slipped upper femoral epiphysis, unspecified stability (nontraumatic), unspecified hip
• M93.074 Acute on chronic slipped upper femoral epiphysis, unspecified stability (nontraumatic), bilateral hips
• M93.1 Kienbock's disease of adults (this code)
• M93.2 Osteochondritis dissecans
• M93.20 Osteochondritis dissecans of unspecified site
• M93.21 Osteochondritis dissecans of shoulder
• M93.211 Osteochondritis dissecans, right shoulder
• M93.212 Osteochondritis dissecans, left shoulder