L code	Large causal agent	M code	Middle causal agent	S code	Small causal agent	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	total	S code	Small causal agent	M code	Middle causal agent	L code	Large causal agent
1	machine	11	engine	111	engine			61		44		43	36	47	44	35	32	27	51	31	24	33	32	38	38	31	19	40	23	729	111	engine	11	engine	1	machine
		12	power transmission mechanism	121	power transmission mechanism			552		473		511	456	440	445	379	401	377	374	367	338	392	319	363	351	301	293	313	324	7,769	121	power transmission mechanism	12	power transmission mechanism
		13	woodworking machine	131	circular sawing machine			2,370		2,172		1,776	1,641	1,555	1,419	1,199	1,182	1,153	1,094	1,065	1,028	870	839	777	774	805	721	721	653	23,814	131	circular sawing machine	13	woodworking machine
				132	band sawing machine			235		189		163	118	141	113	104	78	96	79	81	78	69	61	58	59	41	60	49	50	1,922	132	band sawing machine
				133	wood planer machine			575		462		360	324	276	325	238	229	219	178	184	163	138	143	128	138	121	131	121	116	4,569	133	wood planer machine
				134	hollow chisel mortiser, wood borer			131		86		66	53	66	53	43	37	33	35	42	31	36	30	26	33	18	25	14	28	886	134	hollow chisel mortiser, wood borer
				135	chamfering machine, router, woodworking milling machine			110		96		68	62	66	60	45	34	42	34	36	39	32	31	25	43	25	23	31	16	918	135	chamfering machine, router, woodworking milling machine
				136	chain saw			646		721		639	604	698	651	689	690	631	571	502	541	503	449	431	407	427	461	467	385	11,113	136	chain saw
				139	other woodworking machines			1,023		878		763	680	713	634	519	518	551	524	483	475	411	436	390	374	387	349	372	305	10,785	139	other woodworking machines
		14	construction machine	141	leveling, transporting or loading machine			407		381		346	347	306	295	260	293	268	287	279	235	272	251	270	277	234	237	278	262	5,785	141	leveling, transporting or loading machine	14	construction machine
				142	excavating machine			1,108		913		942	823	752	752	663	645	671	696	681	690	573	567	586	593	653	672	650	684	14,314	142	excavating machine
				143	foundation work machine			107		80		86	87	69	63	54	53	56	64	62	62	70	61	57	64	51	61	44	44	1,295	143	foundation work machine
				144	hardening machine			175		137		96	111	100	99	88	99	74	78	64	83	84	79	57	52	66	52	58	49	1,701	144	hardening machine
				145	demolition machine			131		126		131	125	119	120	112	98	104	105	171	186	192	193	181	164	171	162	186	168	2,945	145	demolition machine
				146	vehicle for high lift work			91		95		98	114	112	119	105	92	90	88	81	89	102	105	95	78	119	100	102	119	1,994	146	vehicle for high lift work
				149	other construction machines			460		388		421	364	330	337	313	292	327	331	322	297	212	227	180	198	168	173	195	175	5,710	149	other construction machines
		15	metal manufacturing machine	151	lathe			527		424		395	433	363	385	287	298	306	338	267	241	284	244	210	249	227	222	233	189	6,122	151	lathe	15	metal manufacturing machine
				152	drill press, milling machine			680		572		558	536	510	494	319	327	323	298	300	299	314	286	232	250	229	220	218	231	7,196	152	drill press, milling machine
				153	grinding machine, buffing machine			849		797		755	726	816	749	599	633	689	620	561	603	565	569	549	562	560	521	554	518	12,795	153	grinding machine, buffing machine
				154	power press			1,119		1,116		1,030	973	904	785	527	559	649	651	586	602	565	517	559	524	503	452	451	475	13,547	154	power press
				155	forging pressure hammer			30		17		25	21	19	26	16	18	12	12	12	11	12	12	14	10	15	11	9	20	322	155	forging pressure hammer
				156	shearing machine			194		213		176	156	189	160	144	141	120	141	102	132	105	125	95	101	95	91	93	83	2,656	156	shearing machine
				159	other metal manufacturing machines			1,716		1,480		1,353	1,415	1,341	1,191	821	921	981	956	931	931	796	779	844	831	817	725	788	747	20,364	159	other metal manufacturing machines
		16	general machine	161	centrifugal machine			21		21		16	24	18	25	13	12	16	13	18	16	15	13	11	17	18	12	14	17	330	161	centrifugal machine	16	general machine
				162	mixer, grinder			389		356		313	324	331	300	262	243	248	284	282	256	250	201	221	224	243	238	225	230	5,420	162	mixer, grinder
				163	roll machine (except printingroll machine)			646		602		566	532	529	509	446	479	416	439	440	424	385	348	417	365	358	354	321	351	8,927	163	roll machine (except printingroll machine)
				164	injection molding machine			194		204		174	146	162	108	119	121	90	104	97	73	73	69	75	95	76	71	84	66	2,201	164	injection molding machine
				165	food manufacturing machine			2,476		2,347		2,267	2,004	2,001	2,152	1,967	1,992	1,992	1,902	1,852	1,723	1,784	1,778	1,744	1,588	1,658	1,548	1,503	1,503	37,781	165	food manufacturing machine
				166	printing machine			521		470		424	410	390	377	326	304	295	290	263	249	211	224	216	191	176	180	206	179	5,902	166	printing machine
				167	industrial robot			26		47		36	36	51	34	29	26	30	31	30	29	26	24	26	26	22	24	29	21	603	167	industrial robot
				169	other general power machines			5,335		5,064		4,430	4,507	4,309	4,126	3,626	3,571	3,576	3,371	3,282	3,158	3,184	3,083	3,071	3,176	3,206	2,954	3,020	2,993	73,042	169	other general power machines
		17	mobile silviculture machine	171	felling machine																	48	56	39	37	45	65	40	70	400	171	felling machine	17	mobile silviculture machine
				172	mobile logging machine																	27	20	19	24	21	18	15	21	165	172	mobile logging machine
				173	skyline yarding machine																	12	15	7	11	15	11	16	15	102	173	skyline yarding machine
				179	other mobile silviculture machine																	4	5	3	5	6	12	12	10	57	179	other mobile silviculture machine
2	crane, conveying machine	21	crane	211	crane			1,357		1,269		1,252	1,216	1,185	1,175	840	844	871	875	789	840	742	772	785	828	850	725	780	762	18,757	211	crane	21	crane	2	crane, conveying machine
				212	mobile crane			969		912		870	766	736	768	648	619	588	566	660	630	615	597	564	603	589	570	566	551	13,387	212	mobile crane
				213	derrick crane			5		3		2	4	4	4	1	5	3	2		2					1				36	213	derrick crane
				214	elevator, lift			321		280		228	268	271	218	214	174	168	189	180	193	184	145	155	176	197	159	171	167	4,058	214	elevator, lift
				215	cargo lifting appliance			20		12		14	10	14	6	5	10	16	5	12	11	5	13	14	12	16	11	15	16	237	215	cargo lifting appliance
				216	gondola			15		10		14	13	8	21	11	12	13	5	11	7	4	5	10	7	8	5	11	9	199	216	gondola
				217	lumberyard equipment, logging cableway			63		45		50	42	35	44	34	39	24	34	21	27	19	21	11	12	9	11	16	12	542	217	lumberyard equipment, logging cableway
				218	simple skyline yarding equipment																	3	1		1		3	4	2	14	218	simple skyline yarding equipment
				219	other powered crane			246		229		234	226	166	169	145	158	156	146	155	145	136	118	108	143	132	130	116	105	3,163	219	other powered crane
		22	conveying machine	221	truck			11,480		10,876		10,304	10,228	9,923	9,445	8,253	8,548	8,547	8,677	8,995	8,817	8,664	8,502	8,797	8,870	8,760	8,890	9,011	8,788	184,375	221	truck	22	conveying machine
				222	forklift			2,621		2,613		2,607	2,570	2,534	2,404	1,954	1,916	2,054	1,982	1,904	1,898	1,890	1,977	1,997	2,113	2,145	1,989	2,028	2,092	43,288	222	forklift
				223	railway equipment			33		28		29	36	29	37	24	15	24	26	28	25	26	13	16	19	31	18	17	10	484	223	railway equipment
				224	conveyor			1,554		1,504		1,376	1,390	1,400	1,339	1,071	1,153	1,092	1,104	1,127	1,131	998	981	1,019	988	967	941	976	935	23,046	224	conveyor
				225	loader			66		66		52	61	43	50	38	36	48	48	37	50	48	47	47	40	57	47	54	59	994	225	loader
		21	crane	226	straddle carrier					5		1	6	2	5	1	2	3	5	2	7	4	5	5	4	2	4	5	3	71	226	straddle carrier	21	crane
		22	conveying machine	227	rough terrain hauler			48		41		33	31	19	37	43	20	23	17	22	25	28	18	34	25	30	23	24	20	561	227	rough terrain hauler	22	conveying machine
				229	other powered conveying machines			665		647		623	623	587	543	444	527	521	498	465	478	408	409	464	460	430	376	395	407	9,970	229	other powered conveying machines
		23	vehicle	231	cars, bus, motorcycle			7,633		7,718		9,931	10,039	9,761	9,414	8,828	8,854	8,431	8,516	8,509	8,496	8,281	8,279	8,179	8,396	7,913	7,311	7,634	7,320	169,443	231	cars, bus, motorcycle	23	vehicle
				232	railway vehicle			72		64		92	83	65	73	75	64	71	64	91	65	50	67	74	65	81	65	79	66	1,426	232	railway vehicle
				239	other vehicles			793		770		801	758	861	702	660	636	644	713	565	560	539	489	513	488	493	395	441	486	12,307	239	other vehicles
3	other equipment	31	pressure vessel	311	boiler			28		19		32	27	36	17	23	23	14	18	19	22	7	13	14	16	17	10	10	12	377	311	boiler	31	pressure vessel	3	other equipment
				312	pressure vessel			65		52		42	39	35	39	36	24	29	41	26	18	29	31	38	22	29	23	23	17	658	312	pressure vessel
				319	other pressure vessels			117		105		76	63	76	82	71	54	61	75	59	63	47	65	49	55	38	41	57	48	1,302	319	other pressure vessels
		32	chemical facilities	321	chemical facilities			27		44		57	45	40	40	26	25	33	33	17	38	29	32	24	43	30	21	47	31	682	321	chemical facilities	32	chemical facilities
		33	welding equipment	331	gas welding equipment			96		83		97	57	84	70	85	64	66	57	53	53	54	50	56	82	65	40	35	53	1,300	331	gas welding equipment	33	welding equipment
				332	arc welding equipment			107		87		102	97	120	102	96	65	69	64	84	79	69	87	63	73	64	69	66	58	1,621	332	arc welding equipment
				339	other welding equipment			140		112		106	107	97	115	54	55	48	76	77	86	70	70	68	59	67	59	74	79	1,619	339	other welding equipment
		34	kiln, caldron	341	kiln, caldron			205		203		181	182	174	185	173	194	144	151	174	146	145	119	169	170	215	172	179	194	3,475	341	kiln, caldron	34	kiln, caldron
				342	industrial dryer			29		20		30	24	21	25	29	21	26	23	25	27	16	16	29	16	28	25	22	25	477	342	industrial dryer
				349	other kiln, caldron			30		37		12	31	24	24	25	16	18	19	20	30	35	30	23	22	21	17	20	16	470	349	other kiln, caldron
		35	electric equipment	351	transmission			117		96		116	101	136	142	115	88	101	140	112	123	140	139	163	185	173	138	191	214	2,730	351	transmission	35	electric equipment
				352	electric power facilities			73		64		65	50	72	66	51	72	50	56	49	60	47	45	42	59	38	45	52	47	1,103	352	electric power facilities
				359	other electrical equipment			138		108		106	96	85	105	72	86	99	65	91	89	76	92	88	91	90	116	114	76	1,883	359	other electrical equipment
		36	human power machine, tools	361	human power cranes			113		115		100	94	97	95	57	66	82	60	65	72	56	62	64	84	406	573	907	1,384	4,552	361	human power cranes	36	human power machine, tools
				362	human power hauling equipment			2,616		2,770		3,102	3,296	3,420	3,635	3,281	3,464	3,532	3,714	3,654	3,796	3,821	4,249	4,281	4,593	4,493	4,528	4,332	4,208	74,785	362	human power hauling equipment
				363	human power machine			189		124		126	130	124	114	85	106	96	100	113	110	101	85	100	85	94	94	99	88	2,163	363	human power machine
				364	hand tool			4,784		4,451		4,138	4,052	4,077	3,730	3,324	3,333	3,201	3,492	3,406	3,245	3,145	2,972	2,987	3,122	3,068	3,121	3,238	3,204	70,090	364	hand tool
		37	tools	371	ladder			5,867		5,651		5,610	5,653	5,613	5,464	5,041	5,061	5,199	5,309	5,269	5,250	5,034	5,086	5,178	5,410	5,571	5,621	5,663	5,569	108,119	371	ladder	37	tools
				372	slinging tool			815		743		758	706	704	647	518	516	482	483	497	448	449	468	444	417	418	369	394	379	10,655	372	slinging tool
				379	other tools			4,022		4,131		4,233	4,572	4,534	4,848	3,873	3,945	4,220	4,080	4,303	4,371	4,481	4,733	5,066	5,109	5,568	5,180	5,553	5,582	92,404	379	other tools
		39	other equipments, facilities	391	other equipments, facilities			2,715		2,433		2,923	2,961	3,086	3,150	2,827	3,123	2,931	3,101	3,143	3,266	3,190	3,338	3,103	3,348	3,368	3,476	3,808	3,924	63,214	391	other equipments, facilities	39	other equipments, facilities
4	temporary buildings, establishments	41	temporary buildings, establishments	411	scaffolding			2,296		2,035		1,905	1,881	1,838	1,580	1,182	1,053	1,224	1,234	1,318	1,332	1,154	1,093	1,030	1,023	1,116	920	908	813	26,935	411	scaffolding	41	temporary buildings, establishments	4	temporary buildings, establishments
				412	timbering			224		148		132	169	164	116	88	86	87	83	86	72	83	65	52	67	50	49	75	56	1,952	412	timbering
				413	stairs, landing stage			4,760		5,048		5,151	5,575	5,476	5,467	5,088	4,992	5,133	5,118	4,986	5,337	5,320	5,618	5,786	5,950	6,270	6,343	6,597	6,725	110,740	413	stairs, landing stage
				414	opening			578		493		476	505	494	449	457	395	387	433	429	420	413	456	420	494	502	484	466	474	9,225	414	opening
				415	roof, beam, haze, crossbeam, principal rafter			2,135		1,859		1,851	1,657	1,360	1,317	1,103	1,187	1,337	1,360	1,246	1,170	1,069	1,030	962	1,080	946	836	814	802	25,121	415	roof, beam, haze, crossbeam, principal rafter
				416	working platform, boot board			3,846		4,033		3,462	3,793	3,803	3,979	3,481	3,627	3,440	3,434	3,396	3,714	3,693	3,578	3,780	4,035	3,775	3,515	3,400	3,841	73,625	416	working platform, boot board
				417	passage			9,055		9,058		10,174	10,336	9,946	10,636	9,794	10,378	11,112	11,340	11,043	11,746	11,404	13,046	13,283	15,395	14,401	15,042	16,969	16,776	240,934	417	passage
				418	building, establishment			4,631		4,258		4,172	4,498	4,348	4,267	3,931	4,020	4,244	4,047	4,061	3,713	3,862	3,746	4,058	4,196	3,739	3,895	3,973	3,926	81,585	418	building, establishment
				419	other temporary buildings, establishments			2,599		2,791		2,777	2,813	2,544	2,522	2,376	2,538	2,393	2,584	2,434	2,781	2,887	2,976	2,734	2,883	3,269	3,359	3,105	3,303	55,668	419	other temporary buildings, establishments
5	substance, material	51	hazards, harmful substances	511	explosive substance			47		48		44	29	27	22	19	21	15	17	31	18	17	16	14	14	14	11	18	19	461	511	explosive substance	51	hazards, harmful substances	5	substance, material
				512	inflammable substance			218		190		166	197	199	163	127	152	111	147	124	153	112	101	112	106	164	98	110	101	2,851	512	inflammable substance
				513	inflammable gas			116		108		88	93	94	106	59	63	95	85	61	79	49	80	59	70	59	55	37	49	1,505	513	inflammable gas
				514	harmful substance			330		307		341	380	320	272	214	264	294	255	258	230	278	250	238	259	213	192	176	195	5,266	514	harmful substance
				515	radiation			1		2			1		3	1			1		1	1	1	5				2		19	515	radiation
				519	other hazards, harmful substances			534		520		524	472	467	419	411	350	452	416	432	445	415	470	475	411	481	456	452	440	9,042	519	other hazards, harmful substances
		52	materials	521	metal material			6,771		5,751		5,534	5,629	5,427	4,893	3,850	3,822	3,749	3,901	3,663	3,809	3,509	3,463	3,595	3,548	3,394	3,070	3,131	3,320	83,829	521	metal material	52	materials
				522	lumber, bamboo			2,444		2,066		1,947	1,822	1,734	1,427	1,289	1,266	1,270	1,254	1,277	1,198	1,095	1,111	1,070	1,067	1,028	1,007	969	1,031	27,372	522	lumber, bamboo
				523	stone, sand, substance			917		721		642	580	543	492	396	401	408	408	400	448	321	326	336	334	347	323	312	329	8,984	523	stone, sand, substance
				529	other materials			2,286		2,127		1,977	2,211	2,134	1,890	1,710	1,741	1,761	1,832	1,798	1,760	1,676	1,501	1,486	1,451	1,504	1,435	1,458	1,581	35,319	529	other materials
6	load	61	load	611	load			7,791		7,077		6,837	7,227	7,576	7,146	6,106	6,009	6,009	6,080	5,917	5,950	5,997	6,103	6,134	6,487	6,581	6,841	6,995	7,338	132,201	611	load	61	load	6	load
				612	machine/equipment as load			862		713		706	713	710	683	586	590	528	589	543	458	459	451	396	423	461	431	397	432	11,131	612	machine/equipment as load
7	environment	71	natural environment	711	natural ground, rock			1,527		1,424		1,151	1,153	1,071	1,095	966	956	963	964	917	833	873	751	797	745	786	773	777	758	19,280	711	natural ground, rock	71	natural environment	7	environment
				712	standing tree			1,506		1,373		1,250	1,163	1,277	1,213	1,374	1,371	1,332	1,141	1,106	1,053	1,086	1,005	965	980	899	953	882	840	22,769	712	standing tree
				713	water			155		178		183	204	170	182	163	126	1,450	155	184	188	130	148	135	204	160	206	140	99	4,560	713	water
				714	abnormal environment			46		40		41	41	44	45	27	44	59	83	65	26	35	51	55	65	31	32	28	34	892	714	abnormal environment
				715	high/cold temperature environment			652		391		382	516	480	485	300	834	662	709	819	748	656	666	733	1,483	1,087	1,194	847	1,210	14,854	715	high/cold temperature environment
				719	other environments			2,851		2,368		2,848	2,605	2,174	2,515	2,351	2,608	3,021	3,294	3,407	3,944	2,924	3,321	3,484	3,968	2,987	3,230	3,758	4,477	62,135	719	other environments
9	others	91	other causal agent	911	other causal agent			3,019		2,891		3,115	3,431	3,206	3,367	2,797	2,859	3,365	3,088	3,168	3,141	3,386	3,190	3,603	3,374	3,672	9,486	22,953	3,998	91,109	911	other causal agent	91	other causal agent	9	others
		92	no causal agent	921	no causal agent			4,210		4,855		5,155	5,163	5,291	5,589	5,959	6,155	6,093	6,428	6,291	6,478	6,749	6,613	7,514	8,635	8,939	10,065	11,276	10,980	138,438	921	no causal agent	92	no causal agent
		99	unclassifiable	999	unclassifiable			583		552		467	500	540	587	449	374	368	428	394	385	324	252	294	342	256	176	194	250	7,715	999	unclassifiable	99	unclassifiable
0					total			140,149		132,936		133,050	134,298	131,478	129,026	114,152	116,733	119,622	119,576	118,157	119,535	116,311	117,910	120,460	127,329	125,611	131,156	149,918	132,355	3,075,378	0	total
L code	Large causal agent	M code	Middle causal agent	S code	Small causal agent	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	total	S code	Small causal agent	M code	Middle causal agent	L code	Large causal agent

notes
Fatal and non-fatal accidents mean fatal and non-fatal injuries and occupational diseases with work absence of 4 days and more.
Data of 2022 year do not include Covid-19 cases. Data of 2020 & 2021 year include Covid-19 cases. Fatal and non-fatal data are same situation.
Data of 2011 year include fatal and non-fatal accidents caused by Great East Japan Earthquake in 2011.
Data source: https://anzeninfo.mhlw.go.jp/user/anzen/tok/anst00.html

• To top