New ICD-10-CM Codes 2027
The FY2027 update takes effect on October 1, 2026: 190 new billable codes, 15 expanded, 4 revised, 21 deleted.
New codes (238)
Added to ICD-10-CM effective October 1, 2026.
- C78.31 – Secondary malignant neoplasm of larynxBillable
- C78.32 – Secondary malignant neoplasm of pharynxBillable
- C79.83 – Secondary malignant neoplasm of oral cavityBillable
- D69.11 – Glanzmann thrombastheniaBillable
- D69.19 – Other qualitative platelet defectsBillable
- E89.83 – Postprocedural hypoglycemia following a procedureHeader
- E89.830 – Post bariatric hypoglycemiaBillable
- E89.838 – Other postprocedural hypoglycemiaBillable
- F64.A – Gender identity disorder, in remissionBillable
- I42.00 – Dilated cardiomyopathy, unspecifiedBillable
- I42.01 – Familial-genetic dilated cardiomyopathyBillable
- I42.09 – Other dilated cardiomyopathyBillable
- I42.81 – Arrhythmogenic cardiomyopathyBillable
- I42.89 – Other cardiomyopathies not elsewhere classifiedBillable
- I47.22 – Catecholaminergic polymorphic ventricular tachycardia [CPVT]Billable
- I49.81 – Brugada syndromeBillable
- I49.82 – Ventricular bigeminyBillable
- I49.89 – Other specified cardiac arrhythmias not elsewhere classifiedBillable
- J34.83 – Odontogenic sinusitisHeader
- J34.830 – Odontogenic sinusitis, maxillary sinusBillable
- J34.831 – Odontogenic sinusitis, ethmoid sinusBillable
- J34.832 – Odontogenic sinusitis, frontal sinusBillable
- J34.833 – Odontogenic sinusitis, sphenoid sinusBillable
- J34.839 – Odontogenic sinusitis, unspecifiedBillable
- J4B – Pulmonary mycetomaBillable
- K31.B – Hypertrophic pyloric stenosis, in childhoodBillable
- K6A – Diseases of the pelvis, not elsewhere classifiedHeader
- K6A.0 – Pelvic abscessHeader
- K6A.01 – Prevesical abscessBillable
- K6A.09 – Other pelvic abscessBillable
- K6A.8 – Other diseases of the pelvis, not elsewhere classifiedBillable
- K74.0A – Hepatic fibrosis, moderate fibrosisBillable
- K76.83 – Intestinal failure-associated liver diseaseBillable
- L02.237 – Carbuncle of flankBillable
- M04.3 – VEXAS syndromeBillable
- M67.A – Plantar fasciitisHeader
- M67.A0 – Plantar fasciitis, footHeader
- M67.A01 – Plantar fasciitis, right footBillable
- M67.A02 – Plantar fasciitis, left footBillable
- M67.A09 – Plantar fasciitis, unspecified footBillable
- M72.20 – Plantar fascial fibromatosis, unspecified footBillable
- M72.21 – Plantar fascial fibromatosis, right footBillable
- M72.22 – Plantar fascial fibromatosis, left footBillable
- M86.8X11 – Other osteomyelitis, right shoulderBillable
- M86.8X12 – Other osteomyelitis, left shoulderBillable
- M86.8X19 – Other osteomyelitis, unspecified shoulderBillable
- M86.8X21 – Other osteomyelitis, right upper armBillable
- M86.8X22 – Other osteomyelitis, left upper armBillable
- M86.8X29 – Other osteomyelitis, unspecified upper armBillable
- M86.8X31 – Other osteomyelitis, right forearmBillable
- M86.8X32 – Other osteomyelitis, left forearmBillable
- M86.8X39 – Other osteomyelitis, unspecified forearmBillable
- M86.8X41 – Other osteomyelitis, right handBillable
- M86.8X42 – Other osteomyelitis, left handBillable
- M86.8X49 – Other osteomyelitis, unspecified handBillable
- M86.8X51 – Other osteomyelitis, right thighBillable
- M86.8X52 – Other osteomyelitis, left thighBillable
- M86.8X59 – Other osteomyelitis, unspecified thighBillable
- M86.8X61 – Other osteomyelitis, right lower legBillable
- M86.8X62 – Other osteomyelitis, left lower legBillable
- M86.8X69 – Other osteomyelitis, unspecified lower legBillable
- M86.8X71 – Other osteomyelitis, right ankle and footBillable
- M86.8X72 – Other osteomyelitis, left ankle and footBillable
- M86.8X79 – Other osteomyelitis, unspecified ankle and footBillable
- M86.8X80 – Other osteomyelitis, skullBillable
- M86.8X81 – Other osteomyelitis, face and sinusesBillable
- M86.8X89 – Other osteomyelitis, other siteBillable
- N99.86 – Intraoperative and postprocedural complications and disorders of breastHeader
- N99.860 – Intraoperative and postprocedural nipple ischemiaBillable
- N99.861 – Intraoperative and postprocedural nipple necrosisBillable
- O00.12 – Interstitial ectopic pregnancy without intrauterine pregnancyHeader
- O00.121 – Right interstitial ectopic pregnancy without intrauterine pregnancyBillable
- O00.122 – Left interstitial ectopic pregnancy without intrauterine pregnancyBillable
- O00.129 – Unspecified interstitial ectopic pregnancy without intrauterine pregnancyBillable
- O00.13 – Interstitial ectopic pregnancy with intrauterine pregnancyHeader
- O00.131 – Right interstitial ectopic pregnancy with intrauterine pregnancyBillable
- O00.132 – Left interstitial ectopic pregnancy with intrauterine pregnancyBillable
- O00.139 – Unspecified interstitial ectopic pregnancy with intrauterine pregnancyBillable
- O00.3 – Cesarean scar ectopic pregnancyHeader
- O00.31 – Cesarean scar ectopic pregnancy without intrauterine pregnancyBillable
- O00.32 – Cesarean scar ectopic pregnancy with intrauterine pregnancyBillable
- O00.4 – Cervical ectopic pregnancyHeader
- O00.41 – Cervical ectopic pregnancy without intrauterine pregnancyBillable
- O00.42 – Cervical ectopic pregnancy with intrauterine pregnancyBillable
- O00.5 – Cornual ectopic pregnancyHeader
- O00.51 – Cornual ectopic pregnancy without intrauterine pregnancyHeader
- O00.511 – Right cornual ectopic pregnancy without intrauterine pregnancyBillable
- O00.512 – Left cornual ectopic pregnancy without intrauterine pregnancyBillable
- O00.519 – Unspecified cornual ectopic pregnancy without intrauterine pregnancyBillable
- O00.52 – Cornual ectopic pregnancy with intrauterine pregnancyHeader
- O00.521 – Right cornual ectopic pregnancy with intrauterine pregnancyBillable
- O00.522 – Left cornual ectopic pregnancy with intrauterine pregnancyBillable
- O00.529 – Unspecified cornual ectopic pregnancy with intrauterine pregnancyBillable
- O31.4 – Continuing pregnancy after vanishing twin syndrome of one fetus or moreHeader
- O31.40 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimesterHeader
- O31.40X0 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, not applicable or unspecifiedBillable
- O31.40X1 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 1Billable
- O31.40X2 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 2Billable
- O31.40X3 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 3Billable
- O31.40X4 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 4Billable
- O31.40X5 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 5Billable
- O31.40X9 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, other fetusBillable
- O31.41 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimesterHeader
- O31.41X0 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, not applicable or unspecifiedBillable
- O31.41X1 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 1Billable
- O31.41X2 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 2Billable
- O31.41X3 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 3Billable
- O31.41X4 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 4Billable
- O31.41X5 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 5Billable
- O31.41X9 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, other fetusBillable
- O31.42 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimesterHeader
- O31.42X0 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, not applicable or unspecifiedBillable
- O31.42X1 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 1Billable
- O31.42X2 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 2Billable
- O31.42X3 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 3Billable
- O31.42X4 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 4Billable
- O31.42X5 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 5Billable
- O31.42X9 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, other fetusBillable
- O31.43 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimesterHeader
- O31.43X0 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, not applicable or unspecifiedBillable
- O31.43X1 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 1Billable
- O31.43X2 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 2Billable
- O31.43X3 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 3Billable
- O31.43X4 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 4Billable
- O31.43X5 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 5Billable
- O31.43X9 – Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, other fetusBillable
- Q87.A – Loeys-Dietz syndromeBillable
- QA1 – Genetic disorders associated with neoplasms, not elsewhere classifiedHeader
- QA1.7 – Inherited neoplasm predisposition syndromes involving multiple systems, not elsewhere classifiedHeader
- QA1.71 – Lynch syndromeBillable
- QA1.79 – Other inherited neoplasm predisposition syndrome of multiple systemsHeader
- QA1.790 – Familial cancer syndrome with pathogenic BRCA1 mutationBillable
- QA1.791 – Familial cancer syndrome with pathogenic BRCA2 mutationBillable
- QA1.792 – Li Fraumeni syndromeBillable
- QA1.798 – Other inherited neoplasm predisposition syndrome of multiple systemsBillable
- R78.72 – Abnormal gadolinium level in bloodBillable
- T52.81 – Toxic effects of alkenesHeader
- T52.811 – Toxic effect of alkenes, accidental (unintentional)Header
- T52.811A – Toxic effect of alkenes, accidental (unintentional), initial encounterBillable
- T52.811D – Toxic effect of alkenes, accidental (unintentional), subsequent encounterBillable
- T52.811S – Toxic effect of alkenes, accidental (unintentional), sequelaBillable
- T52.812 – Toxic effect of alkenes, intentional self-harmHeader
- T52.812A – Toxic effect of alkenes, intentional self-harm, initial encounterBillable
- T52.812D – Toxic effect of alkenes, intentional self-harm, subsequent encounterBillable
- T52.812S – Toxic effect of alkenes, intentional self-harm, sequelaBillable
- T52.813 – Toxic effect of alkenes, assaultHeader
- T52.813A – Toxic effect of alkenes, assault, initial encounterBillable
- T52.813D – Toxic effect of alkenes, assault, subsequent encounterBillable
- T52.813S – Toxic effect of alkenes, assault, sequelaBillable
- T52.814 – Toxic effect of alkenes, undeterminedHeader
- T52.814A – Toxic effect of alkenes, undetermined, initial encounterBillable
- T52.814D – Toxic effect of alkenes, undetermined, subsequent encounterBillable
- T52.814S – Toxic effect of alkenes, undetermined, sequelaBillable
- T52.82 – Toxic effects of cycloparaffinsHeader
- T52.821 – Toxic effect of cycloparaffins, accidental (unintentional)Header
- T52.821A – Toxic effect of cycloparaffins, accidental (unintentional), initial encounterBillable
- T52.821D – Toxic effect of cycloparaffins, accidental (unintentional), subsequent encounterBillable
- T52.821S – Toxic effect of cycloparaffins, accidental (unintentional), sequelaBillable
- T52.822 – Toxic effect of cycloparaffins, intentional self-harmHeader
- T52.822A – Toxic effect of cycloparaffins, intentional self-harm, initial encounterBillable
- T52.822D – Toxic effect of cycloparaffins, intentional self-harm, subsequent encounterBillable
- T52.822S – Toxic effect of cycloparaffins, intentional self-harm, sequelaBillable
- T52.823 – Toxic effect of cycloparaffins, assaultHeader
- T52.823A – Toxic effect of cycloparaffins, assault, initial encounterBillable
- T52.823D – Toxic effect of cycloparaffins, assault, subsequent encounterBillable
- T52.823S – Toxic effect of cycloparaffins, assault, sequelaBillable
- T52.824 – Toxic effect of cycloparaffins, undeterminedHeader
- T52.824A – Toxic effect of cycloparaffins, undetermined, initial encounterBillable
- T52.824D – Toxic effect of cycloparaffins, undetermined, subsequent encounterBillable
- T52.824S – Toxic effect of cycloparaffins, undetermined, sequelaBillable
- T52.89 – Toxic effects of other organic solventsHeader
- T52.891 – Toxic effect of other organic solvents, accidental (unintentional)Header
- T52.891A – Toxic effect of other organic solvents, accidental (unintentional), initial encounterBillable
- T52.891D – Toxic effect of other organic solvents, accidental (unintentional), subsequent encounterBillable
- T52.891S – Toxic effect of other organic solvents, accidental (unintentional), sequelaBillable
- T52.892 – Toxic effect of other organic solvents, intentional self-harmHeader
- T52.892A – Toxic effect of other organic solvents, intentional self-harm, initial encounterBillable
- T52.892D – Toxic effect of other organic solvents, intentional self-harm, subsequent encounterBillable
- T52.892S – Toxic effect of other organic solvents, intentional self-harm, sequelaBillable
- T52.893 – Toxic effect of other organic solvents, assaultHeader
- T52.893A – Toxic effect of other organic solvents, assault, initial encounterBillable
- T52.893D – Toxic effect of other organic solvents, assault, subsequent encounterBillable
- T52.893S – Toxic effect of other organic solvents, assault, sequelaBillable
- T52.894 – Toxic effect of other organic solvents, undeterminedHeader
- T52.894A – Toxic effect of other organic solvents, undetermined, initial encounterBillable
- T52.894D – Toxic effect of other organic solvents, undetermined, subsequent encounterBillable
- T52.894S – Toxic effect of other organic solvents, undetermined, sequelaBillable
- T59.82 – Toxic effects of hexamethylene diisocyanateHeader
- T59.821 – Toxic effect of hexamethylene diisocyanate, accidental (unintentional)Header
- T59.821A – Toxic effect of hexamethylene diisocyanate, accidental (unintentional), initial encounterBillable
- T59.821D – Toxic effect of hexamethylene diisocyanate, accidental (unintentional), subsequent encounterBillable
- T59.821S – Toxic effect of hexamethylene diisocyanate, accidental (unintentional), sequelaBillable
- T59.822 – Toxic effect of hexamethylene diisocyanate, intentional self-harmHeader
- T59.822A – Toxic effect of hexamethylene diisocyanate, intentional self-harm, initial encounterBillable
- T59.822D – Toxic effect of hexamethylene diisocyanate, intentional self-harm, subsequent encounterBillable
- T59.822S – Toxic effect of hexamethylene diisocyanate, intentional self-harm, sequelaBillable
- T59.823 – Toxic effect of hexamethylene diisocyanate, assaultHeader
- T59.823A – Toxic effect of hexamethylene diisocyanate, assault, initial encounterBillable
- T59.823D – Toxic effect of hexamethylene diisocyanate, assault, subsequent encounterBillable
- T59.823S – Toxic effect of hexamethylene diisocyanate, assault, sequelaBillable
- T59.824 – Toxic effect of hexamethylene diisocyanate, undeterminedHeader
- T59.824A – Toxic effect of hexamethylene diisocyanate, undetermined, initial encounterBillable
- T59.824D – Toxic effect of hexamethylene diisocyanate, undetermined, subsequent encounterBillable
- T59.824S – Toxic effect of hexamethylene diisocyanate, undetermined, sequelaBillable
- T65.85 – Toxic effect of medetomidineHeader
- T65.851 – Toxic effect of medetomidine, accidental (unintentional)Header
- T65.851A – Toxic effect of medetomidine, accidental (unintentional), initial encounterBillable
- T65.851D – Toxic effect of medetomidine, accidental (unintentional), subsequent encounterBillable
- T65.851S – Toxic effect of medetomidine, accidental (unintentional), sequelaBillable
- T65.852 – Toxic effect of medetomidine, intentional self-harmHeader
- T65.852A – Toxic effect of medetomidine, intentional self-harm, initial encounterBillable
- T65.852D – Toxic effect of medetomidine, intentional self-harm, subsequent encounterBillable
- T65.852S – Toxic effect of medetomidine, intentional self-harm, sequelaBillable
- T65.853 – Toxic effect of medetomidine, assaultHeader
- T65.853A – Toxic effect of medetomidine, assault, initial encounterBillable
- T65.853D – Toxic effect of medetomidine, assault, subsequent encounterBillable
- T65.853S – Toxic effect of medetomidine, assault, sequelaBillable
- T65.854 – Toxic effect of medetomidine, undeterminedHeader
- T65.854A – Toxic effect of medetomidine, undetermined, initial encounterBillable
- T65.854D – Toxic effect of medetomidine, undetermined, subsequent encounterBillable
- T65.854S – Toxic effect of medetomidine, undetermined, sequelaBillable
- Z68.18 – Body mass index [BMI] 18.4 or less, adultBillable
- Z68.19 – Body mass index [BMI] 18.5-19.9, adultBillable
- Z77.013 – Contact with and (suspected) exposure to gadoliniumBillable
- Z77.32 – Contact with and (suspected) exposure to burn pits in war theaterBillable
- Z77.33 – Contact with and (suspected) exposure to Agent OrangeBillable
- Z77.4 – Contact with and (suspected) exposure to blast overpressureHeader
- Z77.40 – Contact with and (suspected) exposure to unspecified blast overpressureBillable
- Z77.41 – Contact with and (suspected) exposure to low-level blast overpressureBillable
- Z77.42 – Contact with and (suspected) exposure to high-level blast overpressureBillable
- Z77.49 – Contact with and (suspected) exposure to other blast overpressureBillable
- Z86.17 – Personal history of Clostridioides difficile infectionBillable
- Z87.8901 – Personal history of social gender transitionBillable
- Z87.8902 – Personal history of medical gender transitionBillable
- Z87.8903 – Personal history of surgical gender transitionBillable
- Z87.8904 – Personal history of intersex surgeryBillable
- Z87.8909 – Personal history of unspecified gender transitionBillable
- Z87.893 – Personal history of gender detransitionBillable
Expanded categories (now headers with new subcodes) (15)
These codes were billable in FY2026 and are now headers – use one of their new child codes.
- D69.1 – Qualitative platelet defectsHeader
- I42.0 – Dilated cardiomyopathyHeader
- I42.8 – Other cardiomyopathiesHeader
- I49.8 – Other specified cardiac arrhythmiasHeader
- M72.2 – Plantar fascial fibromatosisHeader
- M86.8X1 – Other osteomyelitis, shoulderHeader
- M86.8X2 – Other osteomyelitis, upper armHeader
- M86.8X3 – Other osteomyelitis, forearmHeader
- M86.8X4 – Other osteomyelitis, handHeader
- M86.8X5 – Other osteomyelitis, thighHeader
- M86.8X6 – Other osteomyelitis, lower legHeader
- M86.8X7 – Other osteomyelitis, ankle and footHeader
- M86.8X8 – Other osteomyelitis, other siteHeader
- Z68.1 – Body mass index [BMI] 19.9 or less, adultHeader
- Z87.890 – Personal history of sex reassignmentHeader
Revised code titles (4)
The code stays the same but its description changed.
Deleted codes (21)
Not valid for dates of service on or after October 1, 2026.
- S23.420 – Sprain of sternoclavicular (joint) (ligament)Deleted
- S23.420A – Sprain of sternoclavicular (joint) (ligament), initial encounterDeleted
- S23.420D – Sprain of sternoclavicular (joint) (ligament), subsequent encounterDeleted
- S23.420S – Sprain of sternoclavicular (joint) (ligament), sequelaDeleted
- T52.8X – Toxic effects of other organic solventsDeleted
- T52.8X1 – Toxic effect of organic solvents, accidental (unintentional) Toxic effect of other organic solvents, accidental (unintentional)Deleted
- T52.8X1A – Toxic effect of other organic solvents, accidental (unintentional), initial encounterDeleted
- T52.8X1D – Toxic effect of other organic solvents, accidental (unintentional), subsequent encounterDeleted
- T52.8X1S – Toxic effect of other organic solvents, accidental (unintentional), sequelaDeleted
- T52.8X2 – Toxic effect of other organic solvents, intentional self-harmDeleted
- T52.8X2A – Toxic effect of other organic solvents, intentional self-harm, initial encounterDeleted
- T52.8X2D – Toxic effect of other organic solvents, intentional self-harm, subsequent encounterDeleted
- T52.8X2S – Toxic effect of other organic solvents, intentional self-harm, sequelaDeleted
- T52.8X3 – Toxic effect of other organic solvents, assaultDeleted
- T52.8X3A – Toxic effect of other organic solvents, assault, init encntr Toxic effect of other organic solvents, assault, initial encounterDeleted
- T52.8X3D – Toxic effect of other organic solvents, assault, subs encntr Toxic effect of other organic solvents, assault, subsequent encounterDeleted
- T52.8X3S – Toxic effect of other organic solvents, assault, sequelaDeleted
- T52.8X4 – Toxic effect of other organic solvents, undeterminedDeleted
- T52.8X4A – Toxic effect of other organic solvents, undetermined, initial encounterDeleted
- T52.8X4D – Toxic effect of other organic solvents, undetermined, subsequent encounterDeleted
- T52.8X4S – Toxic effect of other organic solvents, undetermined, sequelaDeleted