2022 ICD-10-CM Diagnosis Code H70.2

Petrositis

    2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
  • H70.2 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2022 edition of ICD-10-CM H70.2 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of H70.2 - other international versions of ICD-10 H70.2 may differ.
Applicable To
  • Inflammation of petrous bone
The following code(s) above H70.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to H70.2:
  • H60-H95
    2022 ICD-10-CM Range H60-H95

    Diseases of the ear and mastoid process

    Note
    • Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition
    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the ear and mastoid process
Clinical Information
  • Inflammation of petrous bone.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
Code annotations containing back-references to H70.2:
  • Type 2 Excludes: M86
    ICD-10-CM Diagnosis Code M86

    Osteomyelitis

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    Use Additional
    • code (B95-B97) to identify infectious agent
ICD-10-CM Codes Adjacent To H70.2
H70.09 Acute mastoiditis with other complications
H70.091 …… right ear
H70.092 …… left ear
H70.093 …… bilateral
H70.099 …… unspecified ear
H70.1 Chronic mastoiditis
H70.10 …… unspecified ear
H70.11 …… right ear
H70.12 …… left ear
H70.13 …… bilateral
H70.2 Petrositis
H70.20 Unspecified petrositis
H70.201 …… right ear
H70.202 …… left ear
H70.203 …… bilateral
H70.209 …… unspecified ear
H70.21 Acute petrositis
H70.211 …… right ear
H70.212 …… left ear
H70.213 …… bilateral
H70.219 …… unspecified ear

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.