| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Myoclonic epilepsy with ragged red fibers | Is a | False | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Kearns-Sayre syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Mitochondrial-lipid-glycogen storage myopathy | Is a | False | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Juvenile myopathy, encephalopathy, lactic acidosis AND stroke | Is a | False | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Leber's optic atrophy | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| [X]Mitochondrial myopathy, not elsewhere classified | Is a | False | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Congenital hyperammonemia, type I | Is a | False | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Cytochrome-c oxidase deficiency | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Mitochondrial myopathy | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Histiocytoid mitochondrial cardiomyopathy due to cytochrome aa3 deficiency | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Mitochondrial cardiomyopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 1 | 
| Hypertrophic mitochondrial cardiomyopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 1 | 
| Histiocytoid mitochondrial cardiomyopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Hypertrophic mitochondrial cardiomyopathy associated with cataracts and lactic acidosis | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 3 | 
| Fatal infantile mitochondrial cardiomyopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Maternally inherited mitochondrial cardiomyopathy and myopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 3 | 
| Family history of mitochondrial disease | Associated finding | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 1 | 
| Childhood myocerebrohepatopathy spectrum | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Mitochondrial metabolism defect | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Deficiency of mitochondrial complex III | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Autosomal dominant optic atrophy plus syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Sensory ataxic neuropathy with dysarthria and ophthalmoparesis syndrome | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 3 | 
| Maternally inherited mitochondrial dystonia | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Hypertrophic cardiomyopathy with hypotonia and lactic acidosis syndrome | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 3 | 
| Zellweger-like syndrome without peroxisomal anomaly | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Fatal mitochondrial disease due to combined oxidative phosphorylation deficiency 3 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Congenital cataract, hypertrophic cardiomyopathy, mitochondrial myopathy syndrome | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 3 | 
| Intellectual disability, epileptic seizures, hypogonadism and hypogenitalism, microcephaly, obesity syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Proximal tubulopathy, diabetes mellitus, cerebellar ataxia syndrome | Is a | False | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Maternally inherited cardiomyopathy and hearing loss syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Infantile onset spinocerebellar ataxia | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 5 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Autosomal recessive ataxia due to ubiquinone deficiency | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Demyelination of central nervous system co-occurrent and due to mitochondrial disease | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 1 | 
| Demyelination of central nervous system co-occurrent and due to mitochondrial disease | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Epileptic encephalopathy with global cerebral demyelination | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 8 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Leukoencephalopathy with brain stem and spinal cord involvement and high lactate syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Liver disease co-occurrent and due to mitochondrial disorder | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Liver disease co-occurrent and due to mitochondrial disorder | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 13 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 15 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 7 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 9 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 21 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Encephalopathy, hypertrophic cardiomyopathy, renal tubular disease syndrome | Is a | False | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Leukoencephalopathy, thalamus and brainstem anomalies, high lactate syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 2 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 4 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Early-onset spastic ataxia, myoclonic epilepsy, neuropathy syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Infantile hypertrophic cardiomyopathy due to mitochondrial ribosomal protein L44 deficiency | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Infantile hypertrophic cardiomyopathy due to mitochondrial ribosomal protein L44 deficiency | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Hypertrophic cardiomyopathy and renal tubular disease due to mitochondrial deoxyribonucleic acid mutation | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 4 | 
| Mitochondrial hypertrophic cardiomyopathy with lactic acidosis due to mitochondrial transfer ribonucleic acid translation optimization 1 deficiency | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Mitochondrial hypertrophic cardiomyopathy with lactic acidosis due to mitochondrial transfer ribonucleic acid translation optimization 1 deficiency | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Severe neonatal lactic acidosis due to NFS1-ISD11 complex deficiency | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 14 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 17 | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Combined oxidative phosphorylation defect type 17 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Mitochondrially encoded ATP synthase membrane subunit 6-related mitochondrial spastic paraplegia | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Hyperuricemia, pulmonary hypertension, renal failure, alkalosis syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Lipoic acid synthetase deficiency | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Lipoyl transferase 1 deficiency | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Autosomal recessive optic atrophy type 7 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation deficiency type 20 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 11 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Autosomal recessive spastic ataxia, optic atrophy, dysarthria syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Gonadal dysgenesis with auditory dysfunction, autosomal recessive inheritance | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Autosomal dominant progressive external ophthalmoplegia | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Autosomal recessive progressive external ophthalmoplegia | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Diabetes-deafness syndrome maternally transmitted | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Dilated cardiomyopathy due to mitochondrial disease | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Disorder of glomerulus due to mitochondrial cytopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Chronic diarrhea with villous atrophy syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Encephalopathy, hypertrophic cardiomyopathy, renal tubular disease syndrome | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 4 | 
| Ocular anomalies, axonal neuropathy, developmental delay syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Lethal left ventricular non-compaction, seizures, hypotonia, cataract, developmental delay syndrome | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 4 | 
| Combined oxidative phosphorylation defect type 30 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 29 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 27 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 26 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 25 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 23 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 23 | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 4 | 
| Neonatal encephalomyopathy, cardiomyopathy, respiratory distress syndrome | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 5 | 
| Maternally inherited mitochondrial myopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Maternally inherited mitochondrial cardiomyopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Non-syndromic mitochondrial sensorineural deafness | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 28 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Glutaminyl-transfer ribonucleic acid amidotransferase subunit-related combined oxidative phosphorylation defect | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Glutaminyl-transfer ribonucleic acid amidotransferase subunit-related combined oxidative phosphorylation defect | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 3 | 
| Cataract, growth hormone deficiency, sensory neuropathy, sensorineural hearing loss, skeletal dysplasia syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Non-progressive predominantly posterior cavitating leukodystrophy with peripheral neuropathy | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Auditory neuropathy, optic atrophy syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Optic atrophy, ataxia, peripheral neuropathy, global developmental delay syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Combined oxidative phosphorylation defect type 24 | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Mitochondrial enoyl coenzyme A reductase protein-associated neurodegeneration syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Encephalopathy due to mitochondrial and peroxisomal fission defect | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Hydrops, lactic acidosis, sideroblastic anemia, multisystemic failure syndrome | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  | 
| Chorea due to mitochondrial cytopathy | Due to | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier | 2 | 
| Tryptophanyl tRNA synthetase 2, mitochondrial-related combined oxidative phosphorylation defect | Is a | True | Mitochondrial cytopathy | Inferred relationship | Existential restriction modifier |  |