Q38.6
Other congenital malformations of mouth
Q38.6 (also written Q386) is a billable ICD-10-CM diagnosis code for other congenital malformations of mouth. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 9 codes in category Q38 (Other congenital malformations of tongue, mouth and pharynx). The Alphabetic Index lists it under 22 entries. Its coding notes include 3 Excludes1 entries and 1 Excludes2 entry.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (1 note)
- inborn errors of metabolism (E70-E88)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Inclusion terms
Conditions classified to this code.
- Congenital malformation of mouth NOS
Notes
Also from chapter/block level (1 note)
- Codes from this chapter are not for use on maternal records
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 22 entries
- Aberrant (congenital), sebaceous glands, mucous membrane, mouth, congenital
- Absence (of) (organ or part) (complete or partial), lip
- Acheilia
- Anomaly, anomalous (congenital) (unspecified type), gum
- Anomaly, anomalous (congenital) (unspecified type), mouth
- Aplasia, alveolar process (acquired), congenital
- Cyst (colloid) (mucous) (simple) (retention), congenital NEC, sublingual
- Cyst (colloid) (mucous) (simple) (retention), congenital NEC, submaxillary gland
- Deformity, mouth (acquired), congenital
- Disease, diseased, Fordyce's (ectopic sebaceous glands) (mouth)
- Ectopic, ectopia (congenital), sebaceous glands of mouth
- Elongated, elongation (congenital), uvula
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- Fordyce's disease (mouth)
- Islands of, parotid tissue in, lymph nodes
- Islands of, parotid tissue in, neck structures
- Islands of, submaxillary glands in, fascia
- Islands of, submaxillary glands in, lymph nodes
- Islands of, submaxillary glands in, neck muscles
- Malformation (congenital), gum
- Malformation (congenital), mouth (congenital)
- Nevus, mouth (mucosa), white sponge
- Nevus, oral mucosa, white sponge