H70.21 Acute petrositis

Non-billable header with 4 child codes.

Applies from H70.2 Petrositis

Applicable to

• Inflammation of petrous bone

Codes under H70.21

• H70.211 Acute petrositis, right ear
• H70.212 Acute petrositis, left ear
• H70.213 Acute petrositis, bilateral
• H70.219 Acute petrositis, unspecified ear

Code annotations containing back-references to H70.21

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 H70.21

• Petrositis › acute

Nearby codes

• H70.20 Unspecified petrositis
• H70.201 Unspecified petrositis, right ear
• H70.202 Unspecified petrositis, left ear
• H70.203 Unspecified petrositis, bilateral
• H70.209 Unspecified petrositis, unspecified ear
• H70.21 Acute petrositis (this code)
• 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