ICD-10-CM Principal Diagnosis Codes for Hospitalization Subset

S00-S99 Anatomic injuries
T07-T34 Foreign bodies, burns, corrosions, frostbite

T36-T50 with a 6th character of 1, 2, 3, or 4

Note: Include T36.9, T37.9, T39.9, T41.4, T42.7, T43.9, T45.9, T47.9, and T49.9 with 5th character of 1, 2, 3, or 4) (Intent information for these codes is included in the 5th character and not the 6th)

Poisoning by drugs, medicaments, and biological substances (Includes accidental, intentional self-harm, assault, and underdetermined intents; Excludes adverse effects and underdosing)
T51-T65 Toxic effects of substances nonmedicinal as to source
T66-T76 Other and unspecified effects of external causes
T79 Certain early complications of trauma, not elsewhere classified
O9A.2-O9A.5 Traumatic injuries and abuse complicating pregnancy, childbirth, and the puerperium
T84.04** Periprosthetic fracture around internal prosthetic joint
M97** Periprosthetic fracture around internal prosthetic joint

*7th character of A, B, C, or missing (reflects initial encounter, active treatment). T30-T32 do not have a 7th character.

** T84.04 was retired and replaced by M97 in the FY2017 version of ICD-10-CM which went into effect on Oct 1, 2016. 

Last Revised: August 29, 2019