diff --git a/ruff_dev/src/generate_check_code_prefix.rs b/ruff_dev/src/generate_check_code_prefix.rs
index 719e49130b..abbb248115 100644
--- a/ruff_dev/src/generate_check_code_prefix.rs
+++ b/ruff_dev/src/generate_check_code_prefix.rs
@@ -130,6 +130,21 @@ pub fn main(cli: &Cli) -> Result<()> {
     output.push('\n');
     output.push('\n');
     output.push_str(&scope.to_string());
+    output.push('\n');
+    output.push('\n');
+
+    // Add the list of output categories (not generated).
+    output.push_str("pub const CATEGORIES: &[CheckCodePrefix] = &[");
+    output.push('\n');
+    for prefix in prefix_to_codes.keys() {
+        if prefix.chars().all(char::is_alphabetic) {
+            output.push_str(&format!("CheckCodePrefix::{prefix},"));
+            output.push('\n');
+        }
+    }
+    output.push_str("];");
+    output.push('\n');
+    output.push('\n');
 
     // Write the output to `src/checks_gen.rs` (or stdout).
     if cli.dry_run {
diff --git a/src/checks_gen.rs b/src/checks_gen.rs
index b333442ff4..22718629fb 100644
--- a/src/checks_gen.rs
+++ b/src/checks_gen.rs
@@ -1603,3 +1603,25 @@ impl CheckCodePrefix {
         }
     }
 }
+
+pub const CATEGORIES: &[CheckCodePrefix] = &[
+    CheckCodePrefix::A,
+    CheckCodePrefix::ANN,
+    CheckCodePrefix::B,
+    CheckCodePrefix::BLE,
+    CheckCodePrefix::C,
+    CheckCodePrefix::D,
+    CheckCodePrefix::E,
+    CheckCodePrefix::F,
+    CheckCodePrefix::FBT,
+    CheckCodePrefix::I,
+    CheckCodePrefix::M,
+    CheckCodePrefix::N,
+    CheckCodePrefix::Q,
+    CheckCodePrefix::RUF,
+    CheckCodePrefix::S,
+    CheckCodePrefix::T,
+    CheckCodePrefix::U,
+    CheckCodePrefix::W,
+    CheckCodePrefix::YTT,
+];
diff --git a/src/settings/configuration.rs b/src/settings/configuration.rs
index 324ec8a93b..8e5ac386e4 100644
--- a/src/settings/configuration.rs
+++ b/src/settings/configuration.rs
@@ -9,7 +9,7 @@ use once_cell::sync::Lazy;
 use path_absolutize::path_dedot;
 use regex::Regex;
 
-use crate::checks_gen::CheckCodePrefix;
+use crate::checks_gen::{CheckCodePrefix, CATEGORIES};
 use crate::settings::pyproject::load_options;
 use crate::settings::types::{FilePattern, PerFileIgnore, PythonVersion};
 use crate::{
@@ -117,28 +117,7 @@ impl Configuration {
                 .unwrap_or_else(|| vec![CheckCodePrefix::E, CheckCodePrefix::F]),
             extend_select: options.extend_select.unwrap_or_default(),
             fix: options.fix.unwrap_or_default(),
-            fixable: options.fixable.unwrap_or_else(|| {
-                // TODO(charlie): Autogenerate this list.
-                vec![
-                    CheckCodePrefix::A,
-                    CheckCodePrefix::B,
-                    CheckCodePrefix::BLE,
-                    CheckCodePrefix::C,
-                    CheckCodePrefix::D,
-                    CheckCodePrefix::E,
-                    CheckCodePrefix::F,
-                    CheckCodePrefix::I,
-                    CheckCodePrefix::M,
-                    CheckCodePrefix::N,
-                    CheckCodePrefix::Q,
-                    CheckCodePrefix::RUF,
-                    CheckCodePrefix::S,
-                    CheckCodePrefix::T,
-                    CheckCodePrefix::U,
-                    CheckCodePrefix::W,
-                    CheckCodePrefix::YTT,
-                ]
-            }),
+            fixable: options.fixable.unwrap_or_else(|| CATEGORIES.to_vec()),
             unfixable: options.unfixable.unwrap_or_default(),
             ignore: options.ignore.unwrap_or_default(),
             line_length: options.line_length.unwrap_or(88),