diff --git a/core/libs/prx/libkernel/Unimplemented.cpp b/core/libs/prx/libkernel/Unimplemented.cpp
index 9fa34427b..eb776741a 100644
--- a/core/libs/prx/libkernel/Unimplemented.cpp
+++ b/core/libs/prx/libkernel/Unimplemented.cpp
@@ -10,6 +10,11 @@ int APS5_VABI sceCoredumpWriteUserData() {
  return 0;
 }
 
+int APS5_VABI sceKernelGetCpuTemperature(int *out_celcius) {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 int APS5_VABI __tls_get_addr_nid_postfix(void) {
     NotImplemented_nid_no_patch("vNe1w4diLCs");
     return 0;
diff --git a/docs/dev/TechnicalDebt.md b/docs/dev/TechnicalDebt.md
index 3f0999622..41300fb18 100644
--- a/docs/dev/TechnicalDebt.md
+++ b/docs/dev/TechnicalDebt.md
@@ -360,6 +360,7 @@ Throughout the project, every function at every stage either **does exactly what
 - [pnz21I6VjDs](../../core/libs/prx/libkernel/Unimplemented.cpp) (libkernel) - unknown name, signature
 - [qk043QPsrZU](../../core/libs/prx/libkernel/Unimplemented.cpp) (libkernel) - unknown name, signature
 - [uDGXwUKqi8s](../../core/libs/prx/libkernel/Unimplemented.cpp) (libkernel) - unknown name, signature
+- [sceKernelGetCpuTemperature](../../core/libs/prx/libkernel/Unimplemented.cpp) (libkernel) - imported by PPSA99902, which fails to load without it; added without an implementation because its behavior is unverified.
 - [LinuxProtFromSce](../../core/libs/prx/libkernel/DirectMemory/DirectMemory.cpp) (libkernel) - protection bits 0x100 and 0x200 are accepted and assumed not to affect host CPU access; host protection is derived only from the read, write and execute bits
 - [_sceUlobjmgrRegisterObject](../../core/libs/prx/ulobjmgr/Export.cpp) (ulobjmgr) - parameters taken from shadPS4 (PS4): a nonzero 64-bit object, a nonzero 32-bit kind and a 32-bit id output; the meaning of the first two and the PS5 signature are unverified. The id bound of `_sceUlobjmgrUnregisterObject` (below 0x4000) and the raw `EINVAL` (22) return also come from shadPS4
 - [sceShareGetCurrentStatus](../../core/libs/prx/libSceShare/Export.cpp) (libSceShare) - validation (feature flag non-zero, status non-null) and the all-zero 16-byte status taken from the [KytyPS5](https://github.com/KytyPS5/KytyPS5) reimplementation, not confirmed on a PS5 title; the meaning of the recording status values is unknown