Free online searchable
2009 ICD-9-CM
Diseases and Injuries
>> Tabular
Index
>> Alphabetic
Index
Procedures
>> Tabular
Index
>>
Alphabetic Index
Appendices
>> Drugs
/ Chemicals
>> External Causes
Other Resources
>> HCPCS Alpha
>> Medical
Dictionary
>> Drug Directory
Tips
Contribute
| Gastrula Archenteron | Blastopore | Gastrocoele | Primitive Gut | Primitive Streak | Archenterons | Blastopores | Gastrocoeles | Gastrulas | Gut, Primitive | Guts, Primitive | Primitive Guts | Primitive Streaks | Streak, Primitive | Streaks, Primitive The embryo in the early stage following the blastula, characterized by morphogenetic cell movements, cell differentiation, and the formation of the three germ layers. | |
| The National Library of Medicine (terms and conditions) | |