-- D57.20 Sickle-cell/Hb-C disease without crisis

--- D57.211 Sickle-cell/Hb-C disease with acute chest syndrome

--- D57.212 Sickle-cell/Hb-C disease with splenic sequestration

--- D57.213 Sickle-cell/Hb-C disease with cerebral vascular involvement

--- D57.218 Sickle-cell/Hb-C disease with crisis with other specified complication

--- D57.219 Sickle-cell/Hb-C disease with crisis, unspecified

-- D57.21 Sickle-cell/Hb-C disease with crisis