Coming October 1, 2026: FY2027 ICD-10-CM Diagnosis changes

FY2027 takes effect on October 1, 2026. Until then FY2026 is the current release, and every code page on this site shows FY2026. This list is generated from the official release files: 238 codes added, 19 changed, 21 deleted.

No longer billable from October 1, 2026 (15)

These codes gain more specific codes beneath them, so they stop being valid on a claim. Use one of the new codes listed under each.

• D69.1 Qualitative platelet defects
  • D69.11 Glanzmann thrombasthenia
  • D69.19 Other qualitative platelet defects
• I42.0 Dilated cardiomyopathy
  • I42.00 Dilated cardiomyopathy, unspecified
  • I42.01 Familial-genetic dilated cardiomyopathy
  • I42.09 Other dilated cardiomyopathy
• I42.8 Other cardiomyopathies
  • I42.81 Arrhythmogenic cardiomyopathy
  • I42.89 Other cardiomyopathies not elsewhere classified
• I49.8 Other specified cardiac arrhythmias
  • I49.81 Brugada syndrome
  • I49.82 Ventricular bigeminy
  • I49.89 Other specified cardiac arrhythmias not elsewhere classified
• M72.2 Plantar fascial fibromatosis
  • M72.20 Plantar fascial fibromatosis, unspecified foot
  • M72.21 Plantar fascial fibromatosis, right foot
  • M72.22 Plantar fascial fibromatosis, left foot
• M86.8X1 Other osteomyelitis, shoulder
  • M86.8X11 Other osteomyelitis, right shoulder
  • M86.8X12 Other osteomyelitis, left shoulder
  • M86.8X19 Other osteomyelitis, unspecified shoulder
• M86.8X2 Other osteomyelitis, upper arm
  • M86.8X21 Other osteomyelitis, right upper arm
  • M86.8X22 Other osteomyelitis, left upper arm
  • M86.8X29 Other osteomyelitis, unspecified upper arm
• M86.8X3 Other osteomyelitis, forearm
  • M86.8X31 Other osteomyelitis, right forearm
  • M86.8X32 Other osteomyelitis, left forearm
  • M86.8X39 Other osteomyelitis, unspecified forearm
• M86.8X4 Other osteomyelitis, hand
  • M86.8X41 Other osteomyelitis, right hand
  • M86.8X42 Other osteomyelitis, left hand
  • M86.8X49 Other osteomyelitis, unspecified hand
• M86.8X5 Other osteomyelitis, thigh
  • M86.8X51 Other osteomyelitis, right thigh
  • M86.8X52 Other osteomyelitis, left thigh
  • M86.8X59 Other osteomyelitis, unspecified thigh
• M86.8X6 Other osteomyelitis, lower leg
  • M86.8X61 Other osteomyelitis, right lower leg
  • M86.8X62 Other osteomyelitis, left lower leg
  • M86.8X69 Other osteomyelitis, unspecified lower leg
• M86.8X7 Other osteomyelitis, ankle and foot
  • M86.8X71 Other osteomyelitis, right ankle and foot
  • M86.8X72 Other osteomyelitis, left ankle and foot
  • M86.8X79 Other osteomyelitis, unspecified ankle and foot
• M86.8X8 Other osteomyelitis, other site
  • M86.8X80 Other osteomyelitis, skull
  • M86.8X81 Other osteomyelitis, face and sinuses
  • M86.8X89 Other osteomyelitis, other site
• Z68.1 Body mass index [BMI] 19.9 or less, adult
  • Z68.18 Body mass index [BMI] 18.4 or less, adult
  • Z68.19 Body mass index [BMI] 18.5-19.9, adult
• Z87.890 Personal history of sex reassignment
  • Z87.8901 Personal history of social gender transition
  • Z87.8902 Personal history of medical gender transition
  • Z87.8903 Personal history of surgical gender transition
  • Z87.8904 Personal history of intersex surgery
  • Z87.8909 Personal history of unspecified gender transition

Added codes (238)

• C78.31 Secondary malignant neoplasm of larynx
• C78.32 Secondary malignant neoplasm of pharynx
• C79.83 Secondary malignant neoplasm of oral cavity
• D69.11 Glanzmann thrombasthenia
• D69.19 Other qualitative platelet defects
• E89.83 Postprocedural hypoglycemia following a procedure
• E89.830 Post bariatric hypoglycemia
• E89.838 Other postprocedural hypoglycemia
• F64.A Gender identity disorder, in remission
• I42.00 Dilated cardiomyopathy, unspecified
• I42.01 Familial-genetic dilated cardiomyopathy
• I42.09 Other dilated cardiomyopathy
• I42.81 Arrhythmogenic cardiomyopathy
• I42.89 Other cardiomyopathies not elsewhere classified
• I47.22 Catecholaminergic polymorphic ventricular tachycardia [CPVT]
• I49.81 Brugada syndrome
• I49.82 Ventricular bigeminy
• I49.89 Other specified cardiac arrhythmias not elsewhere classified
• J34.83 Odontogenic sinusitis
• J34.830 Odontogenic sinusitis, maxillary sinus
• J34.831 Odontogenic sinusitis, ethmoid sinus
• J34.832 Odontogenic sinusitis, frontal sinus
• J34.833 Odontogenic sinusitis, sphenoid sinus
• J34.839 Odontogenic sinusitis, unspecified
• J4B Pulmonary mycetoma
• K31.B Hypertrophic pyloric stenosis, in childhood
• K6A Diseases of the pelvis, not elsewhere classified
• K6A.0 Pelvic abscess
• K6A.01 Prevesical abscess
• K6A.09 Other pelvic abscess
• K6A.8 Other diseases of the pelvis, not elsewhere classified
• K74.0A Hepatic fibrosis, moderate fibrosis
• K76.83 Intestinal failure-associated liver disease
• L02.237 Carbuncle of flank
• M04.3 VEXAS syndrome
• M67.A Plantar fasciitis
• M67.A0 Plantar fasciitis, foot
• M67.A01 Plantar fasciitis, right foot
• M67.A02 Plantar fasciitis, left foot
• M67.A09 Plantar fasciitis, unspecified foot
• M72.20 Plantar fascial fibromatosis, unspecified foot
• M72.21 Plantar fascial fibromatosis, right foot
• M72.22 Plantar fascial fibromatosis, left foot
• M86.8X11 Other osteomyelitis, right shoulder
• M86.8X12 Other osteomyelitis, left shoulder
• M86.8X19 Other osteomyelitis, unspecified shoulder
• M86.8X21 Other osteomyelitis, right upper arm
• M86.8X22 Other osteomyelitis, left upper arm
• M86.8X29 Other osteomyelitis, unspecified upper arm
• M86.8X31 Other osteomyelitis, right forearm
• M86.8X32 Other osteomyelitis, left forearm
• M86.8X39 Other osteomyelitis, unspecified forearm
• M86.8X41 Other osteomyelitis, right hand
• M86.8X42 Other osteomyelitis, left hand
• M86.8X49 Other osteomyelitis, unspecified hand
• M86.8X51 Other osteomyelitis, right thigh
• M86.8X52 Other osteomyelitis, left thigh
• M86.8X59 Other osteomyelitis, unspecified thigh
• M86.8X61 Other osteomyelitis, right lower leg
• M86.8X62 Other osteomyelitis, left lower leg
• M86.8X69 Other osteomyelitis, unspecified lower leg
• M86.8X71 Other osteomyelitis, right ankle and foot
• M86.8X72 Other osteomyelitis, left ankle and foot
• M86.8X79 Other osteomyelitis, unspecified ankle and foot
• M86.8X80 Other osteomyelitis, skull
• M86.8X81 Other osteomyelitis, face and sinuses
• M86.8X89 Other osteomyelitis, other site
• N99.86 Intraoperative and postprocedural complications and disorders of breast
• N99.860 Intraoperative and postprocedural nipple ischemia
• N99.861 Intraoperative and postprocedural nipple necrosis
• O00.12 Interstitial ectopic pregnancy without intrauterine pregnancy
• O00.121 Right interstitial ectopic pregnancy without intrauterine pregnancy
• O00.122 Left interstitial ectopic pregnancy without intrauterine pregnancy
• O00.129 Unspecified interstitial ectopic pregnancy without intrauterine pregnancy
• O00.13 Interstitial ectopic pregnancy with intrauterine pregnancy
• O00.131 Right interstitial ectopic pregnancy with intrauterine pregnancy
• O00.132 Left interstitial ectopic pregnancy with intrauterine pregnancy
• O00.139 Unspecified interstitial ectopic pregnancy with intrauterine pregnancy
• O00.3 Cesarean scar ectopic pregnancy
• O00.31 Cesarean scar ectopic pregnancy without intrauterine pregnancy
• O00.32 Cesarean scar ectopic pregnancy with intrauterine pregnancy
• O00.4 Cervical ectopic pregnancy
• O00.41 Cervical ectopic pregnancy without intrauterine pregnancy
• O00.42 Cervical ectopic pregnancy with intrauterine pregnancy
• O00.5 Cornual ectopic pregnancy
• O00.51 Cornual ectopic pregnancy without intrauterine pregnancy
• O00.511 Right cornual ectopic pregnancy without intrauterine pregnancy
• O00.512 Left cornual ectopic pregnancy without intrauterine pregnancy
• O00.519 Unspecified cornual ectopic pregnancy without intrauterine pregnancy
• O00.52 Cornual ectopic pregnancy with intrauterine pregnancy
• O00.521 Right cornual ectopic pregnancy with intrauterine pregnancy
• O00.522 Left cornual ectopic pregnancy with intrauterine pregnancy
• O00.529 Unspecified cornual ectopic pregnancy with intrauterine pregnancy
• O31.4 Continuing pregnancy after vanishing twin syndrome of one fetus or more
• O31.40 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester
• O31.40X0 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, not applicable or unspecified
• O31.40X1 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 1
• O31.40X2 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 2
• O31.40X3 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 3
• O31.40X4 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 4
• O31.40X5 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 5
• O31.40X9 Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, other fetus
• O31.41 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester
• O31.41X0 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, not applicable or unspecified
• O31.41X1 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 1
• O31.41X2 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 2
• O31.41X3 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 3
• O31.41X4 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 4
• O31.41X5 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 5
• O31.41X9 Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, other fetus
• O31.42 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester
• O31.42X0 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, not applicable or unspecified
• O31.42X1 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 1
• O31.42X2 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 2
• O31.42X3 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 3
• O31.42X4 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 4
• O31.42X5 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 5
• O31.42X9 Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, other fetus
• O31.43 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester
• O31.43X0 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, not applicable or unspecified
• O31.43X1 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 1
• O31.43X2 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 2
• O31.43X3 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 3
• O31.43X4 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 4
• O31.43X5 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 5
• O31.43X9 Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, other fetus
• Q87.A Loeys-Dietz syndrome
• QA1 Genetic disorders associated with neoplasms, not elsewhere classified
• QA1.7 Inherited neoplasm predisposition syndromes involving multiple systems, not elsewhere classified
• QA1.71 Lynch syndrome
• QA1.79 Other inherited neoplasm predisposition syndrome of multiple systems
• QA1.790 Familial cancer syndrome with pathogenic BRCA1 mutation
• QA1.791 Familial cancer syndrome with pathogenic BRCA2 mutation
• QA1.792 Li Fraumeni syndrome
• QA1.798 Other inherited neoplasm predisposition syndrome of multiple systems
• R78.72 Abnormal gadolinium level in blood
• T52.81 Toxic effects of alkenes
• T52.811 Toxic effect of alkenes, accidental (unintentional)
• T52.811A Toxic effect of alkenes, accidental (unintentional), initial encounter
• T52.811D Toxic effect of alkenes, accidental (unintentional), subsequent encounter
• T52.811S Toxic effect of alkenes, accidental (unintentional), sequela
• T52.812 Toxic effect of alkenes, intentional self-harm
• T52.812A Toxic effect of alkenes, intentional self-harm, initial encounter
• T52.812D Toxic effect of alkenes, intentional self-harm, subsequent encounter
• T52.812S Toxic effect of alkenes, intentional self-harm, sequela
• T52.813 Toxic effect of alkenes, assault
• T52.813A Toxic effect of alkenes, assault, initial encounter
• T52.813D Toxic effect of alkenes, assault, subsequent encounter
• T52.813S Toxic effect of alkenes, assault, sequela
• T52.814 Toxic effect of alkenes, undetermined
• T52.814A Toxic effect of alkenes, undetermined, initial encounter
• T52.814D Toxic effect of alkenes, undetermined, subsequent encounter
• T52.814S Toxic effect of alkenes, undetermined, sequela
• T52.82 Toxic effects of cycloparaffins
• T52.821 Toxic effect of cycloparaffins, accidental (unintentional)
• T52.821A Toxic effect of cycloparaffins, accidental (unintentional), initial encounter
• T52.821D Toxic effect of cycloparaffins, accidental (unintentional), subsequent encounter
• T52.821S Toxic effect of cycloparaffins, accidental (unintentional), sequela
• T52.822 Toxic effect of cycloparaffins, intentional self-harm
• T52.822A Toxic effect of cycloparaffins, intentional self-harm, initial encounter
• T52.822D Toxic effect of cycloparaffins, intentional self-harm, subsequent encounter
• T52.822S Toxic effect of cycloparaffins, intentional self-harm, sequela
• T52.823 Toxic effect of cycloparaffins, assault
• T52.823A Toxic effect of cycloparaffins, assault, initial encounter
• T52.823D Toxic effect of cycloparaffins, assault, subsequent encounter
• T52.823S Toxic effect of cycloparaffins, assault, sequela
• T52.824 Toxic effect of cycloparaffins, undetermined
• T52.824A Toxic effect of cycloparaffins, undetermined, initial encounter
• T52.824D Toxic effect of cycloparaffins, undetermined, subsequent encounter
• T52.824S Toxic effect of cycloparaffins, undetermined, sequela
• T52.89 Toxic effects of other organic solvents
• T52.891 Toxic effect of other organic solvents, accidental (unintentional)
• T52.891A Toxic effect of other organic solvents, accidental (unintentional), initial encounter
• T52.891D Toxic effect of other organic solvents, accidental (unintentional), subsequent encounter
• T52.891S Toxic effect of other organic solvents, accidental (unintentional), sequela
• T52.892 Toxic effect of other organic solvents, intentional self-harm
• T52.892A Toxic effect of other organic solvents, intentional self-harm, initial encounter
• T52.892D Toxic effect of other organic solvents, intentional self-harm, subsequent encounter
• T52.892S Toxic effect of other organic solvents, intentional self-harm, sequela
• T52.893 Toxic effect of other organic solvents, assault
• T52.893A Toxic effect of other organic solvents, assault, initial encounter
• T52.893D Toxic effect of other organic solvents, assault, subsequent encounter
• T52.893S Toxic effect of other organic solvents, assault, sequela
• T52.894 Toxic effect of other organic solvents, undetermined
• T52.894A Toxic effect of other organic solvents, undetermined, initial encounter
• T52.894D Toxic effect of other organic solvents, undetermined, subsequent encounter
• T52.894S Toxic effect of other organic solvents, undetermined, sequela
• T59.82 Toxic effects of hexamethylene diisocyanate
• T59.821 Toxic effect of hexamethylene diisocyanate, accidental (unintentional)
• T59.821A Toxic effect of hexamethylene diisocyanate, accidental (unintentional), initial encounter
• T59.821D Toxic effect of hexamethylene diisocyanate, accidental (unintentional), subsequent encounter
• T59.821S Toxic effect of hexamethylene diisocyanate, accidental (unintentional), sequela
• T59.822 Toxic effect of hexamethylene diisocyanate, intentional self-harm
• T59.822A Toxic effect of hexamethylene diisocyanate, intentional self-harm, initial encounter
• T59.822D Toxic effect of hexamethylene diisocyanate, intentional self-harm, subsequent encounter
• T59.822S Toxic effect of hexamethylene diisocyanate, intentional self-harm, sequela
• T59.823 Toxic effect of hexamethylene diisocyanate, assault
• T59.823A Toxic effect of hexamethylene diisocyanate, assault, initial encounter
• T59.823D Toxic effect of hexamethylene diisocyanate, assault, subsequent encounter
• T59.823S Toxic effect of hexamethylene diisocyanate, assault, sequela
• T59.824 Toxic effect of hexamethylene diisocyanate, undetermined
• T59.824A Toxic effect of hexamethylene diisocyanate, undetermined, initial encounter
• T59.824D Toxic effect of hexamethylene diisocyanate, undetermined, subsequent encounter
• T59.824S Toxic effect of hexamethylene diisocyanate, undetermined, sequela
• T65.85 Toxic effect of medetomidine
• T65.851 Toxic effect of medetomidine, accidental (unintentional)
• T65.851A Toxic effect of medetomidine, accidental (unintentional), initial encounter
• T65.851D Toxic effect of medetomidine, accidental (unintentional), subsequent encounter
• T65.851S Toxic effect of medetomidine, accidental (unintentional), sequela
• T65.852 Toxic effect of medetomidine, intentional self-harm
• T65.852A Toxic effect of medetomidine, intentional self-harm, initial encounter
• T65.852D Toxic effect of medetomidine, intentional self-harm, subsequent encounter
• T65.852S Toxic effect of medetomidine, intentional self-harm, sequela
• T65.853 Toxic effect of medetomidine, assault
• T65.853A Toxic effect of medetomidine, assault, initial encounter
• T65.853D Toxic effect of medetomidine, assault, subsequent encounter
• T65.853S Toxic effect of medetomidine, assault, sequela
• T65.854 Toxic effect of medetomidine, undetermined
• T65.854A Toxic effect of medetomidine, undetermined, initial encounter
• T65.854D Toxic effect of medetomidine, undetermined, subsequent encounter
• T65.854S Toxic effect of medetomidine, undetermined, sequela
• Z68.18 Body mass index [BMI] 18.4 or less, adult
• Z68.19 Body mass index [BMI] 18.5-19.9, adult
• Z77.013 Contact with and (suspected) exposure to gadolinium
• Z77.32 Contact with and (suspected) exposure to burn pits in war theater
• Z77.33 Contact with and (suspected) exposure to Agent Orange
• Z77.4 Contact with and (suspected) exposure to blast overpressure
• Z77.40 Contact with and (suspected) exposure to unspecified blast overpressure
• Z77.41 Contact with and (suspected) exposure to low-level blast overpressure
• Z77.42 Contact with and (suspected) exposure to high-level blast overpressure
• Z77.49 Contact with and (suspected) exposure to other blast overpressure
• Z86.17 Personal history of Clostridioides difficile infection
• Z87.8901 Personal history of social gender transition
• Z87.8902 Personal history of medical gender transition
• Z87.8903 Personal history of surgical gender transition
• Z87.8904 Personal history of intersex surgery
• Z87.8909 Personal history of unspecified gender transition
• Z87.893 Personal history of gender detransition

Revised codes (4)

• L02.232 was: Carbuncle of back [any part, except buttock]
  now: Carbuncle of back [any part, except buttock and flank]
• L03.312 was: Cellulitis of back [any part except buttock]
  now: Cellulitis of back [any part except buttock and flank]
• L03.322 was: Acute lymphangitis of back [any part except buttock]
  now: Acute lymphangitis of back [any part except buttock and flank]
• Z29.14 was: Encounter for prophylactic rabies immune globin
  now: Encounter for prophylactic rabies immune globulin

Deleted codes — valid through September 30, 2026 (21)

• S23.420 Sprain of sternoclavicular (joint) (ligament)
• S23.420A Sprain of sternoclavicular (joint) (ligament), initial encounter
• S23.420D Sprain of sternoclavicular (joint) (ligament), subsequent encounter
• S23.420S Sprain of sternoclavicular (joint) (ligament), sequela
• T52.8X Toxic effects of other organic solvents
• T52.8X1 Toxic effect of other organic solvents, accidental (unintentional)
• T52.8X1A Toxic effect of other organic solvents, accidental (unintentional), initial encounter
• T52.8X1D Toxic effect of other organic solvents, accidental (unintentional), subsequent encounter
• T52.8X1S Toxic effect of other organic solvents, accidental (unintentional), sequela
• T52.8X2 Toxic effect of other organic solvents, intentional self-harm
• T52.8X2A Toxic effect of other organic solvents, intentional self-harm, initial encounter
• T52.8X2D Toxic effect of other organic solvents, intentional self-harm, subsequent encounter
• T52.8X2S Toxic effect of other organic solvents, intentional self-harm, sequela
• T52.8X3 Toxic effect of other organic solvents, assault
• T52.8X3A Toxic effect of other organic solvents, assault, initial encounter
• T52.8X3D Toxic effect of other organic solvents, assault, subsequent encounter
• T52.8X3S Toxic effect of other organic solvents, assault, sequela
• T52.8X4 Toxic effect of other organic solvents, undetermined
• T52.8X4A Toxic effect of other organic solvents, undetermined, initial encounter
• T52.8X4D Toxic effect of other organic solvents, undetermined, subsequent encounter
• T52.8X4S Toxic effect of other organic solvents, undetermined, sequela

The new codes get their own pages here on October 1, 2026.