2026 ICD-10-CM Diagnosis Code K06.1Gingival enlargement
ICD-10-CM Codes›K00–K95›K00-K14›K06
- Billable — Valid for Submission
- Not Chronic
K06.1 is a billable ICD-10-CM diagnosis code for gingival enlargement. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 157 through 159. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury; Caries, periodontitis, and other preventable dental conditions; and Disorders of teeth and gingiva.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Amelogenesis imperfecta and gingival hyperplasia syndrome
- Cherubism with gingival fibromatosis
- Circumscribed palmoplantar keratoderma
- Congenital generalized hypertrichosis
- Drug-induced gingival hyperplasia
- Facial dysmorphism, hypertrichosis, epilepsy, intellectual disability/developmental delay, gingival overgrowth syndrome
- Focal acral hyperkeratosis
- Focal palmoplantar and gingival keratoderma
- Generalized enlargement of gingiva exacerbated by pregnancy
- Gingival disease caused by drug
- Gingival disease due to genetic disorder
- Gingival enlargement
- Gingival enlargement due to Cowden syndrome
- Gingival enlargement due to Sturge-Weber syndrome
- Gingival enlargement exacerbated by drug
- Gingival enlargement exacerbated by menstrual cycle
- Gingival enlargement exacerbated by oral contraceptive
- Gingival enlargement exacerbated by puberty
- Gingival excess
- Gingival excess due to excessive gingival display
- Gingival excess due to pseudopocket
- Gingival fibromatosis
- Gingival fibromatosis and hypertrichosis syndrome
- Gingival fibromatosis with facial dysmorphism syndrome
- Gingival fibromatosis with progressive deafness syndrome
- Gingival hypertrophy caused by diphenylhydantoin
- Hereditary gingival fibromatosis
- Hyperplasia of gingiva
- Hyperplasia of interdental papilla
- Hyperplasia of retromolar gingiva
- Hypertrophy of gingiva
- Idiopathic gingival fibromatosis
- Lanugo
- Malocclusion due to gingival hyperplasia
- Pseudopocket
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Gingival fibromatosis
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Enlargement, enlarged - See Also: Hypertrophy;
- gingival - K06.1
- Fibromatosis - M72.9
- gingival - K06.1
- gum (mucous membrane) - K06.1
- gum - K06.1
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Enlargement, enlarged
- gingival
- Fibromatosis
- gingival
- Hyperplasia, hyperplastic
- gingiva
- Hyperplasia, hyperplastic
- gum
- Hypertrophy, hypertrophic
- gum (mucous membrane)
- Hypertrophy, hypertrophic
- mucous membrane
- gum
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Drug Induced Gingival Hyperplasia
overgrowth of the gingival tissue caused by phenytoin, cyclosporine a, and calcium channel blockers.Lanugo
fine downy hair that covers the body of a human fetus beginning in the fifth month of gestation; it is usually shed by the ninth month of gestation.
Patient EducationClinical
Gum Disease
If you have gum disease, you're not alone. Many U.S. adults currently have some form of the disease. It ranges from simple gum inflammation, called gingivitis, to serious damage to the tissue and bone supporting the teeth. In the worst cases, you can lose teeth.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K06.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K06.1Overview
Is K06.1 (Other disorders of gingiva and edentulous alveolar ridge) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report gingival enlargement on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K06.1 group to?
When gingival enlargement is the principal diagnosis on an inpatient stay, it groups to MS-DRG 157, 158, 159, with relative weights from 0.7085 to 1.7168 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of K06.1?
Under the General Equivalence Mappings, gingival enlargement converts to ICD-9-CM 523.8 (periodontal disease NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
