M16.9 Osteoarthritis of hip, unspecified

Billable ICD-10-CM code, FY2026.

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 715.35 Osteoarthrosis, localized, not specified whether primary or secondary, pelvic region and thigh (approximate)
• 715.95 Osteoarthrosis, unspecified whether generalized or localized, pelvic region and thigh (approximate)

Code annotations containing back-references to M16.9

Back-references to M16

• Type 1 Excludes: M12 Other and unspecified arthropathy ("arthrosis (M15-M19)")
• Type 1 Excludes: M13 Other arthritis ("arthrosis (M15-M19)")
• Type 1 Excludes: M13 Other arthritis ("osteoarthritis (M15-M19)")
• Type 1 Excludes: M13.8 Other specified arthritis ("osteoarthritis (M15-M19)")
• Type 1 Excludes: M15 Polyosteoarthritis ("bilateral involvement of single joint (M16-M19)")

Diagnosis Index entries for M16.9

• Morbus › coxae senilis
• Osteoarthritis › hip

Nearby codes

• M16.50 Unilateral post-traumatic osteoarthritis, unspecified hip
• M16.51 Unilateral post-traumatic osteoarthritis, right hip
• M16.52 Unilateral post-traumatic osteoarthritis, left hip
• M16.6 Other bilateral secondary osteoarthritis of hip
• M16.7 Other unilateral secondary osteoarthritis of hip
• M16.9 Osteoarthritis of hip, unspecified (this code)