K05.1Chronic gingivitis

K05.1 is the ICD-10-CM diagnosis code for chronic gingivitis. It belongs to category K05 (gingivitis and periodontal diseases), block K00-K14 (diseases of oral cavity and salivary glands) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within K05 (gingivitis and periodontal diseases), K05.1 is specifically for chronic gingivitis. Related codes cover acute gingivitis (K05.0), aggressive periodontitis (K05.2), chronic periodontitis (K05.3), Periodontosis (K05.4), other periodontal diseases (K05.5) and periodontal disease, unspecified (K05.6).

To report this condition, pick the subcode that matches the documentation: K05.10 (plaque induced) and K05.11 (non-plaque induced).

Code first: , if applicable, diseases of the digestive system complicating pregnancy (O99.61-).

Use an 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) and 2 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.