G89 | 
		  | 
		Pain, not elsewhere classified   | 
	
	
		 |  | 
		
 | 
	
 |  | 
	
		 G89.0 | 
		  | 
		Central pain syndrome | 
	 
	
		 |  | 
		
| Déjérine-Roussy syndrome |  | Myelopathic pain syndrome |  | Thalamic pain syndrome (hyperesthetic) |   
 | 
	   | 
 |  | 
	
		 G89.1 | 
		 | 
		Acute pain, not elsewhere classified | 
	 
 |  | 
	
		 G89.11 | 
		 | 
		Acute pain due to trauma | 
	 
  |   |  | 
	
		 G89.12 | 
		  | 
		Acute post-thoracotomy pain | 
	 
	
		 |  | 
		
| Post-thoracotomy pain NOS |   
 | 
	   |   |  | 
	
		 G89.18 | 
		  | 
		Other acute postprocedural pain | 
	 
	
		 |  | 
		
| Postoperative pain NOS |  | Postprocedural pain NOS |   
 | 
	   |    | 
 |  | 
	
		 G89.2 | 
		  | 
		Chronic pain, not elsewhere classified | 
	 
	
		 |  | 
		
	
		| Excludes1 | 
		causalgia, lower limb (G57.7-) causalgia, upper limb (G56.4-) central pain syndrome (G89.0) chronic pain syndrome (G89.4) complex regional pain syndrome II, lower limb (G57.7-) complex regional pain syndrome II, upper limb (G56.4-) neoplasm related chronic pain (G89.3) reflex sympathetic dystrophy (G90.5-)
  | 
	 
 
 | 
	  |  | 
	
		 G89.21 | 
		 | 
		Chronic pain due to trauma | 
	 
  |   |  | 
	
		 G89.22 | 
		 | 
		Chronic post-thoracotomy pain | 
	 
  |   |  | 
	
		 G89.28 | 
		  | 
		Other chronic postprocedural pain | 
	 
	
		 |  | 
		
| Other chronic postoperative pain |   
 | 
	   |   |  | 
	
		 G89.29 | 
		 | 
		Other chronic pain | 
	 
  |    | 
 |  | 
	
		 G89.3 | 
		  | 
		Neoplasm related pain (acute) (chronic) | 
	 
	
		 |  | 
		
| Cancer associated pain |  | Pain due to malignancy (primary) (secondary) |  | Tumor associated pain |   
 | 
	   | 
 |  | 
	
		 G89.4 | 
		  | 
		Chronic pain syndrome | 
	 
	
		 |  | 
		
| Chronic pain associated with significant psychosocial dysfunction |   
 | 
	   |