K00–K95
Diseases of the Digestive System
GERD, IBS, liver disease, appendicitis
K11
Diseases of salivary glands
Non-billable
K11.0
Atrophy of salivary gland
Billable
K11.1
Hypertrophy of salivary gland
Billable
K11.2
Sialoadenitis
Non-billable
K11.20
Sialoadenitis, unspecified
Billable
K11.21
Acute sialoadenitis
Billable
K11.22
Acute recurrent sialoadenitis
Billable
K11.23
Chronic sialoadenitis
Billable
K11.3
Abscess of salivary gland
Billable
K11.4
Fistula of salivary gland
Billable
K11.5
Sialolithiasis
Billable
K11.6
Mucocele of salivary gland
Billable
K11.7
Disturbances of salivary secretion
Billable
K11.8
Other diseases of salivary glands
Billable
K11.9
Disease of salivary gland, unspecified
Billable
K12
Stomatitis and related lesions
Non-billable
K12.0
Recurrent oral aphthae
Billable
K12.1
Other forms of stomatitis
Billable
K12.2
Cellulitis and abscess of mouth
Billable
K12.3
Oral mucositis (ulcerative)
Non-billable
K12.30
Oral mucositis (ulcerative), unspecified
Billable
K12.31
Oral mucositis (ulcerative) due to antineoplastic therapy
Billable
K12.32
Oral mucositis (ulcerative) due to other drugs
Billable
K12.33
Oral mucositis (ulcerative) due to radiation
Billable
K12.39
Other oral mucositis (ulcerative)
Billable
K13
Other diseases of lip and oral mucosa
Non-billable
K13.0
Diseases of lips
Billable
K13.1
Cheek and lip biting
Billable
K13.2
Leukoplakia and other disturbances of oral epithelium, including tongue
Non-billable
K13.21
Leukoplakia of oral mucosa, including tongue
Billable
K13.22
Minimal keratinized residual ridge mucosa
Billable
K13.23
Excessive keratinized residual ridge mucosa
Billable
K13.24
Leukokeratosis nicotina palati
Billable
K13.29
Other disturbances of oral epithelium, including tongue
Billable
K13.3
Hairy leukoplakia
Billable
K13.4
Granuloma and granuloma-like lesions of oral mucosa
Billable
K13.5
Oral submucous fibrosis
Billable
K13.6
Irritative hyperplasia of oral mucosa
Billable
K13.7
Other and unspecified lesions of oral mucosa
Non-billable
K13.70
Unspecified lesions of oral mucosa
Billable
K13.79
Other lesions of oral mucosa
Billable
K14
Diseases of tongue
Non-billable
K14.0
Glossitis
Billable
K14.1
Geographic tongue
Billable
K14.2
Median rhomboid glossitis
Billable
K14.3
Hypertrophy of tongue papillae
Billable
K14.4
Atrophy of tongue papillae
Billable
K14.5
Plicated tongue
Billable
K14.6
Glossodynia
Billable
K14.8
Other diseases of tongue
Billable
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