Q38.4
Congenital malformations of salivary glands and ducts
Q38.4 (also written Q384) is a billable ICD-10-CM diagnosis code for congenital malformations of salivary glands and ducts. 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 33 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.
- Atresia of salivary glands and ducts
- Congenital absence of salivary glands and ducts
- Congenital accessory salivary glands and ducts
- Congenital fistula of salivary gland
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. 33 entries
- Absence (of) (organ or part) (complete or partial), salivary gland (s), congenital
- Accessory (congenital), parotid gland (and duct)
- Accessory (congenital), salivary gland
- Accessory (congenital), submaxillary gland
- Agenesis, parotid gland (s)
- Agenesis, salivary gland
- Agenesis, submaxillary gland (s) (congenital)
- Anomaly, anomalous (congenital) (unspecified type), Bartholin's duct
- Anomaly, anomalous (congenital) (unspecified type), parotid (gland)
- Anomaly, anomalous (congenital) (unspecified type), salivary duct or gland
- Anomaly, anomalous (congenital) (unspecified type), stenonian duct
- Anomaly, anomalous (congenital) (unspecified type), submaxillary gland
Show 21 more
- Atresia, atretic, parotid duct
- Atresia, atretic, salivary duct
- Atresia, atretic, sublingual duct
- Atresia, atretic, submandibular duct
- Atresia, atretic, submaxillary duct
- Calculus, calculi, calculous, sublingual duct or gland, congenital
- Cyst (colloid) (mucous) (simple) (retention), congenital NEC, salivary gland (any)
- Deformity, parotid (gland) (congenital)
- Deformity, salivary gland or duct (congenital)
- Deformity, submandibular gland (congenital)
- Deformity, submaxillary gland (congenital)
- Displacement, displaced, opening of Wharton's duct in mouth
- Displacement, displaced, parotid gland (congenital)
- Displacement, displaced, salivary gland (any) (congenital)
- Displacement, displaced, sublingual duct
- Duplication, duplex, salivary duct
- Fistula (cutaneous), salivary duct or gland (any), congenital
- Fusion, fused (congenital), sublingual duct with submaxillary duct at opening in mouth
- Hypertrophy, hypertrophic, salivary gland (any), congenital
- Hypoplasia, hypoplastic, parotid gland
- Ranula, congenital