2021 ICD-10-CM Diagnosis Code K05.0

Acute gingivitis

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • K05.0 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM K05.0 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of K05.0 - other international versions of ICD-10 K05.0 may differ.
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 K05.0. 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.
  • acute necrotizing ulcerative gingivitis (
    ICD-10-CM Diagnosis Code A69.1

    Other Vincent's infections

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Fusospirochetal pharyngitis
    • Necrotizing ulcerative (acute) gingivitis
    • Necrotizing ulcerative (acute) gingivostomatitis
    • Spirochetal stomatitis
    • Trench mouth
    • Vincent's angina
    • Vincent's gingivitis
    A69.1
    )
  • herpesviral [herpes simplex] gingivostomatitis (
    ICD-10-CM Diagnosis Code B00.2

    Herpesviral gingivostomatitis and pharyngotonsillitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Herpesviral pharyngitis
    B00.2
    )
The following code(s) above K05.0 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 K05.0:
  • K00-K95
    2021 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 2021 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
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
Code annotations containing back-references to K05.0:
  • Type 2 Excludes: K06
    ICD-10-CM Diagnosis Code K06

    Other disorders of gingiva and edentulous alveolar ridge

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • acute gingivitis (K05.0)
    • atrophy of edentulous alveolar ridge (K08.2)
    • chronic gingivitis (K05.1)
    • gingivitis NOS (K05.1)
ICD-10-CM Codes Adjacent To K05.0
K04.3 Abnormal hard tissue formation in pulp
K04.4 Acute apical periodontitis of pulpal origin
K04.5 Chronic apical periodontitis
K04.6 Periapical abscess with sinus
K04.7 Periapical abscess without sinus
K04.8 Radicular cyst
K04.9 Other and unspecified diseases of pulp and periapical tissues
K04.90 Unspecified diseases of pulp and periapical tissues
K04.99 Other diseases of pulp and periapical tissues
K05 Gingivitis and periodontal diseases
K05.0 Acute gingivitis
K05.00 …… plaque induced
K05.01 …… non-plaque induced
K05.1 Chronic gingivitis
K05.10 …… plaque induced
K05.11 …… non-plaque induced
K05.2 Aggressive periodontitis
K05.20 …… unspecified
K05.21 Aggressive periodontitis, localized
K05.211 …… slight
K05.212 …… moderate

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