2020 ICD-10-CM Diagnosis Code K05.3

Chronic periodontitis

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • K05.3 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM K05.3 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K05.3 - other international versions of ICD-10 K05.3 may differ.
Applicable To
  • Chronic pericoronitis
  • Complex periodontitis
  • Periodontitis NOS
  • Simplex periodontitis
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K05.3. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • chronic apical periodontitis (
    ICD-10-CM Diagnosis Code K04.5

    Chronic apical periodontitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Apical or periapical granuloma
    • Apical periodontitis NOS
    Type 1 Excludes
    • chronic periodontitis (K05.3-)
    K04.5
    )
The following code(s) above K05.3 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 K05.3:
  • K00-K95
    2020 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    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 digestive system
  • K05
    ICD-10-CM Diagnosis Code K05

    Gingivitis and periodontal diseases

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify:
    • alcohol abuse and dependence (F10.-)
    • exposure to environmental tobacco smoke (Z77.22)
    • exposure to tobacco smoke in the perinatal period (P96.81)
    • history of tobacco dependence (Z87.891)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)
    Gingivitis and periodontal diseases
Clinical Information
  • A disease that attacks the gum and bone around the teeth
  • Chronic inflammation and loss of periodontium that is associated with the amount of dental plaque or dental calculus present. Chronic periodontitis occurs mostly in adults and was called adult periodontitis, but this disease can appear in young people.
  • Inflammation and loss of connective tissues supporting or surrounding the teeth. This may involve any part of the periodontium. Periodontitis is currently classified by disease progression (chronic periodontitis; aggressive periodontitis) instead of age of onset. (from 1999 international workshop for a classification of periodontal diseases and conditions, american academy of periodontology)
  • Inflammatory reaction of the tissues surrounding a tooth (periodontium), usually resulting from the extension of gingival inflammation into the periodontium.
  • Long-term inflammation of the gingiva surrounding the crown of a tooth, usually of an incompletely erupted tooth.
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
Code annotations containing back-references to K05.3:
  • Type 1 Excludes: K04.5
    ICD-10-CM Diagnosis Code K04.5

    Chronic apical periodontitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Apical or periapical granuloma
    • Apical periodontitis NOS
    Type 1 Excludes
    • chronic periodontitis (K05.3-)
ICD-10-CM Codes Adjacent To K05.3
K05.21 Aggressive periodontitis, localized
K05.211 …… slight
K05.212 …… moderate
K05.213 …… severe
K05.219 …… unspecified severity
K05.22 Aggressive periodontitis, generalized
K05.221 …… slight
K05.222 …… moderate
K05.223 …… severe
K05.229 …… unspecified severity
K05.3 Chronic periodontitis
K05.30 …… unspecified
K05.31 Chronic periodontitis, localized
K05.311 …… slight
K05.312 …… moderate
K05.313 …… severe
K05.319 …… unspecified severity
K05.32 Chronic periodontitis, generalized
K05.321 …… slight
K05.322 …… moderate
K05.323 …… severe

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