Q79 vs Q82.8
Q79 and Q82.8 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on Q82.8
Ehlers-Danlos syndromes (Q79.6-)
Q79
Congenital malformations of musculoskeletal system, not elsewhere classified
Not billable
- Chapter 17
- Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q65-Q79
Q82.8
Other specified congenital malformations of skin
BillableUnspecified
- Chapter 17
- Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- Section
- Q80-Q89
Use when the record says
- Abnormal palmar creases
- Accessory skin tags
- Benign familial pemphigus [Hailey-Hailey]
- Congenital poikiloderma
- Cutis laxa (hyperelastica)
- Dermatoglyphic anomalies
- Inherited keratosis palmaris et plantaris
- Keratosis follicularis [Darier-White]
Indexed under
- Angiomatosis
- Bloomsyndrome (-Machacek)(-Torre)
- Brugsch's syndrome
- Darier (-White) disease (congenital)
- Dermatolysis (exfoliativa) (congenital)
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027