D16.5 Benign neoplasm of lower jaw bone

Billable ICD-10-CM code, FY2026.

Applicable to

• Keratocyst of mandible
• Keratocystic odontogenic tumor of mandible

Applies from D16 Benign neoplasm of bone and articular cartilage

Excludes1 (never code together)

• benign neoplasm of connective tissue of ear (D21.0)
• benign neoplasm of connective tissue of eyelid (D21.0)
• benign neoplasm of connective tissue of larynx (D14.1)
• benign neoplasm of connective tissue of nose (D14.0)
• benign neoplasm of synovia (D21.-)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 213.1 Benign neoplasm of lower jaw bone

Code annotations containing back-references to D16.5

Back-references to D16.5

• Type 1 Excludes: D10.39 Benign neoplasm of other parts of mouth ("benign odontogenic neoplasms (D16.4-D16.5)")
• Type 2 Excludes: D16.4 Benign neoplasm of bones of skull and face ("benign neoplasm of lower jaw bone (D16.5)")
• Type 2 Excludes: K09.0 Developmental odontogenic cysts ("keratocysts (D16.4, D16.5)")
• Type 2 Excludes: K09.0 Developmental odontogenic cysts ("odontogenic keratocystic tumors (D16.4, D16.5)")

Back-references to D16

• Type 1 Excludes: D21 Other benign neoplasms of connective and other soft tissue ("benign neoplasm of articular cartilage (D16.-)")

Diagnosis Index entries for D16.5

• Cyst (colloid) (mucous) (simple) (retention) › calcifying odontogenic

Nearby codes

• D16.3 Benign neoplasm of short bones of lower limb
• D16.30 Benign neoplasm of short bones of unspecified lower limb
• D16.31 Benign neoplasm of short bones of right lower limb
• D16.32 Benign neoplasm of short bones of left lower limb
• D16.4 Benign neoplasm of bones of skull and face
• D16.5 Benign neoplasm of lower jaw bone (this code)
• D16.6 Benign neoplasm of vertebral column
• D16.7 Benign neoplasm of ribs, sternum and clavicle
• D16.8 Benign neoplasm of pelvic bones, sacrum and coccyx
• D16.9 Benign neoplasm of bone and articular cartilage, unspecified