H70.22 Chronic petrositis

Non-billable header with 4 child codes.

Applies from H70.2 Petrositis

Applicable to

• Inflammation of petrous bone

Codes under H70.22

• H70.221 Chronic petrositis, right ear
• H70.222 Chronic petrositis, left ear
• H70.223 Chronic petrositis, bilateral
• H70.229 Chronic petrositis, unspecified ear

Code annotations containing back-references to H70.22

Back-references to H70.2

• Type 2 Excludes: M86 Osteomyelitis ("petrous bone (H70.2-)")

Back-references to H70

• Type 2 Excludes: H74 Other disorders of middle ear mastoid ("mastoiditis (H70.-)")

Diagnosis Index entries for H70.22

• Petrositis › chronic

Nearby codes

• H70.21 Acute petrositis
• H70.211 Acute petrositis, right ear
• H70.212 Acute petrositis, left ear
• H70.213 Acute petrositis, bilateral
• H70.219 Acute petrositis, unspecified ear
• H70.22 Chronic petrositis (this code)
• H70.221 Chronic petrositis, right ear
• H70.222 Chronic petrositis, left ear
• H70.223 Chronic petrositis, bilateral
• H70.229 Chronic petrositis, unspecified ear
• H70.8 Other mastoiditis and related conditions