Billable / Specific Code
ICD-10-CM Q43.6 is the diagnosis code for Congenital fistula of rectum and anus. This code falls under the section "Other congenital malformations of the digestive system" within Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as Q43.6. They are mutually exclusive:
Understanding where Q43.6 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Q43.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Q43.6 is the ICD-10-CM diagnosis code for "Congenital fistula of rectum and anus". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Q43.6 is Q43 ("Other congenital malformations of intestine"). Q43.6 provides a more specific classification within this category.
Q43.6 is located in Section Q38-Q45 — "Other congenital malformations of the digestive system" within Chapter 17 of the ICD-10-CM Tabular List.
Use Q43.6 when the patients documented diagnosis matches "Congenital fistula of rectum and anus" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Congenital fistula of rectum and anus is Q43.6.
Yes, Q43.6 can be used as a primary diagnosis code since it is billable and specific.
Q43.6 is in Chapter 17 of the ICD-10-CM Tabular List.
Type 1 Excludes for Q43.6 include: congenital fistula of anus with absence, atresia and stenosis (Q42.2); congenital fistula of rectum with absence, atresia and stenosis (Q42.0); congenital rectovaginal fistula (Q52.2) and more.
Yes, Q43.6 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.